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Maxiflex P3 PAC  User Manual 

30 

-© Omniflex 

UMM126XR18.pdf 

 

 

 

6.  The Data Interchange Table explained 

6.1  DIT Table Overview 

Data Interchange Tables (DIT’s) are the “crossroads” for data in the Maxiflex system. A DIT 
is  an  array  of  16  bit  registers  accessible  from  any  function  or  communications  port  in  the 
system. 

The P3 CPU has a DIT in which all the configuration settings and dynamic data, including I/O 
can be accessed. Any exchange of data between functions in the CPU and with the outside 
world takes place t

hrough the CPU’s DIT.  

Intelligent I/O Modules such as NIM’s also each have a DIT. A portion of the intelligent I/O 
modules’ DIT Registers are overlaid on to the CPU DIT, and appear as if they are part of the 
CPU’s  DIT. This  extended  DIT  addressing  is  used  to  directly  access  data  in  any  intelligent 
modules installed on the Maxiflex base as if the data is in the CPU. 

 

6.2  DIT Table Layout 

The  Data  Interchange  Table  in  the  P3  CPU  provides  access  to  up  to  65,500  16-bit  data 
registers used for reading and writing all configuration and dynamic data in the CPU and all 
of its I/O modules. 

Some  of  these  register  addresses  expose  registers  in  the  Intelligent  I/O  modules  of  the 
system as if they are part of the CPU’s DIT. This is known as “extended DIT access”. There 
are two modes of operation of extended DIT access: 

In Extended Address Mode 1, each of the 15 I/O Module Slots is allocated 2000 Registers in 
the CPU address space. 

In Extended Address Mode 2, only the first 7 I/O Module Slots are allocated 4000 Registers 
each in the CPU address space.  

The following tables show the address map of the DIT table for an entire MAXIFLEX system 
as viewed from the P3 CPU in each Extended Addressing mode. 

This  table  shows  the  CPU  DIT  mapping  of  the  first  2000  registers  of  any  NIM  modules 
installed on the Maxiflex base: 

 

Maxiflex Local Master Rack 

Maxiflex 

Slot: 

CPU 

Dynamic 

Data 

Space 

CPU 

Config 

Data 

Space 

I/O 

Slot 

I/O 

Slot 

I/O 

Slot 

I/O 

Slot 

I/O 

Slot 

I/O 

Slot 

I/O 

Slot 

DIT Start 

Address: 

60,000 

30,000 

32,000   34,000 

36,000  38,000 

40,000  42,000 

DIT End 

Address: 

29,999 

65499 

31,999 

33,999  35,999 

37,999  39,999 

41,999  43,999 

No. of 

Registers 

30,000 

5,499 

2,000 

2,000 

2,000 

2,000 

2,000 

2,000 

2,000 

Table 6.1: DIT Address Map of the P3 CPU and Master Rack in Extended DIT Address Mode 1 

 

Содержание Maxiflex P3 M1260E

Страница 1: ...Maxiflex P3 Process Automation Controller CPU User s Manual...

Страница 2: ...new DIT access function blocks to ISaGraf programming extensions March 2005 10 Added remote I O support redundant options October 2005 11 Added Network Offset screen grab to section 10 4 2 August 200...

Страница 3: ...om patent or other protective rights of Omniflex or others 3 Although every intention is made to ensure that performance figures and data are accurate the company reserves the right to alter without n...

Страница 4: ...rt and Conet c Twisted Pair Network Port standard features only M1265A A3e CPU with RS232 485 Serial Port and Conet e 10 100 Ethernet Network Port standard features only M1267B P3e R CPU with RS232 48...

Страница 5: ...OSI 7 layer model these CPU s includes powerful inter network routing capability for retrieving data from the corners of the factory in very large geographically spread out installations This capabil...

Страница 6: ...onnecting the Watchdog Relay Output Contact 25 4 9 Applying power for the first time 26 4 10 Front Panel LED Indicators Explained 26 5 I O Module Management Scanning Explained 28 5 1 Number of I O Mod...

Страница 7: ...ut Module 48V Input 52 8 The Subscription Service Explained 55 8 1 Introduction to Subscriptions 55 8 2 Setting up subscriptions 55 8 3 Number of subscriptions allowed 57 8 4 Subscription Application...

Страница 8: ...14 2 Step 2 Set Remote I O DIP Switch Addresses 105 14 3 Step 3 Power up the Primary Controller and Remote I O Racks 105 14 4 Step 4 Check Remote I O Activity 105 14 5 Step 5 Configure Primary Control...

Страница 9: ...Front Panel LED Indicator Functions Explained 27 Table 6 1 DIT Address Map of the P3 CPU and Master Rack in Extended DIT Address Mode 1 30 Table 6 2 DIT Address Map of the Expander Rack in Extended D...

Страница 10: ...Maxiflex P3 PAC User Manual 10 Omniflex UMM126XR18 pdf Table 14 1 Remote I O Module Address Switch Settings 105...

Страница 11: ...ist of 65 535 data registers of 16 bits each that contain the dynamic and configuration data for the product Each register is accessed by its DIT Address in the table 0 to 65535 The DIT is used as a f...

Страница 12: ...oller Process Automation Controller A Process Automation Controller PAC consists of a conventional Maxiflex Base equipped with a Power Supply P3 CPU and local I O Modules if required If this Controlle...

Страница 13: ...t types of slots PSU Slots contain PSU Modules CPU Slots contain CPU Modules I O Slots contain IOM and NIM Modules Standby Mode An operating mode of one of the two dual redundant controllers in a dual...

Страница 14: ...required by the TCP IP protocols Each process that wants to communicate with another process via TCP IP identifies itself to the TCP IP protocol suite by one or more ports A port is a 16 bit number u...

Страница 15: ...Indicators A full description of the function of each indicator is given in section 4 10 NAME COLOUR M1260E P3 M1261E P3c M1262F P3e M1267B P3e R CPU OK Green Y Y Y Y I O OK Green Y Y Y Y RUN Green Y...

Страница 16: ...ailable on this port allowing easy connection to third party Modbus Slave devices c Conet s protocol peer to peer is available on this port for integration into Conet Intranets Conet s connection allo...

Страница 17: ...ove 2 4 Dual Redundant Operation The P3e R CPU is designed to operate in dual redundant configuration In this configuration each CPU must be mounted on its own local Master Base with its own Power Sup...

Страница 18: ...ce stored in the queue PC based clients such as the Omniflex Conet OPC Server are able to poll this queue over the network and extract the queued events for analysis It is also possible for a user app...

Страница 19: ...ations range from simple data scaling to analogue control systems and programmable logic control The user program has access to the following features in the CPU Direct access to I O modules in the sy...

Страница 20: ...e configuration This configuration is done in the CPU and the configuration is stored in the CPU The CPU manages the configuration of all IOM s If an IOM is exchanged then the CPU reconfigures the rep...

Страница 21: ...not in the CPU If an Intelligent Module is exchanged then the replacement module must be re configured reprogrammed This can be done through the CPU s programming port An example of an Intelligent Mod...

Страница 22: ...M APPLICATION LAYER CPU PORT 0 COM PORT NIM SPECIFIC DATA LINK LAYER USER PROGRAM APPLICATION LAYER I O SLOT 1 NIM I O PROCESSING I O SLOT 2 IOM To Other Slots PRESENTATION LAYER PRESENTATION LAYER MA...

Страница 23: ...ed Enable the DIT battery backup feature if required by connecting the battery link accessible through the front door of the CPU module The battery link is shipped connected To activate the battery pu...

Страница 24: ...e Programming port all models Connect the P3 A3 CPU to a standard PC compatible serial port using the OMNIFLEX supplied standard programming cable Part Number M1831A supplied separately If another cab...

Страница 25: ...Board and interconnecting cable Refer to C6169 Installation Guide for further details Pin number Description 2 Signal 5 Cable screen S 8 Signal 1 3 4 6 7 and 9 No connection Table 4 3 Pin allocation o...

Страница 26: ...emove forcing from ISaGraf Workbench RUN GREEN ON User program is running OFF No User Program is running FLASHING Indicates the CPU is in redundant configuration and is currently in Standby mode BATT...

Страница 27: ...re is activity on the Sync Link SYNC 100 YELLOW ON The Sync Link is operating at 100Mbit s OFF There is a problem with the Sync Link Table 4 4 Front Panel LED Indicator Functions Explained NOTE On Pow...

Страница 28: ...s are accessible from both controllers in a dual redundant configuration 5 2 Automatic I O Module Identification The CPU automatically identifies each I O module installed in a Maxiflex system both in...

Страница 29: ...automatically read from the Input modules and stored in the CPU s Dynamic Data area of the DIT Table and output status information is automatically read from Dynamic Data area of the DIT Table and wr...

Страница 30: ...data in the CPU and all of its I O modules Some of these register addresses expose registers in the Intelligent I O modules of the system as if they are part of the CPU s DIT This is known as extended...

Страница 31: ...99 57 999 No of Registers 30 000 5 499 4 000 4 000 4 000 4 000 4 000 4 000 4 000 Table 6 3 DIT Address Map of the CPU and Master Rack in Extended DIT Address Mode 2 The default setting for the extende...

Страница 32: ...0 To read the Alive Counter of the M1585B NIM module in slot 2 which is DIT register 23 in the DIT layout of the NIM module read CPU DIT address 32 023 The M1580A Serial NIM has a total of 4000 DIT re...

Страница 33: ...t Analogue Outputs 16 Analogue Inputs 16 Digital Outputs 4 Digital Inputs 4 Configuration 100 Table 6 4 I O Slot DIT data space allocation The Inputs and Outputs from all the modules are grouped toget...

Страница 34: ...100 Table 6 5 I O DIT Address Map for P3 A3 CPUs Local I O Rack Remote Master Rack 1 Remote Expansion Rack 1 I O Slot 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Analogue Outputs 756 772 788 804 820 836 852...

Страница 35: ...s 2 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 Table 6 7 I O DIT Address Map for P3 A3 CPUs Remote I O Rack 2 Remote Master Rack 3 Remote Expansion Rack 3 I O Slot 1 2 3 4 5 6 7 8 9 1...

Страница 36: ...s 2 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 Table 6 9 I O DIT Address Map for P3 A3 CPUs Remote I O Rack 4 Remote Master Rack 5 Remote Expansion Rack 5 I O Slot 1 2 3 4 5 6 7 8 9 1...

Страница 37: ...s 2 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 Table 6 11 I O DIT Address Map for P3 A3 CPUs Remote I O Rack 6 Remote Master Rack 7 Remote Expansion Rack 7 I O Slot 1 2 3 4 5 6 7 8 9...

Страница 38: ...Solar 3A Charger Power Supply DIGITAL INPUT DATA SPACE DIT Offset Digital Inputs where individual inputs are allocated as follows 0 Bit 0 LSB First Scan Bit 1 Primary Supply Status 1 Program in First...

Страница 39: ...tus 1 Sensor is connected Bit 3 Battery Level Warning 1 Battery Level Low Warning Alarm Bit 4 Battery Level Critical 1 Battery Level Low Critical Alarm Bits 5 to 16 will read as 0 ANALOGUE INPUT DATA...

Страница 40: ...6A 32DI 32 way Digital Input Module DIGITAL INPUT DATA SPACE DIT Offset Digital Inputs 1 16 where individual inputs are allocated as follows 0 Input 1 Bit 0 LSB Input 2 Bit 1 Input 3 Bit 2 Input 4 Bit...

Страница 41: ...Data Spaces are unused by this module Example Input 5 of an M1330A module installed in Local Slot 3 can be read from DIT Address 5012 Bit 4 Output 5 of an M1330A module installed in Local Slot 3 can...

Страница 42: ...1 Bit 4 Output 22 Bit 5 Output 23 Bit 6 Output 24 Bit 7 Output 25 Bit 8 Output 26 Bit 9 Output 27 Bit 10 Output 28 Bit 11 Output 29 Bit 12 Output 30 Bit 13 Output 31 Bit 14 Output 32 Bit 15 MSB All ot...

Страница 43: ...ting the input range 0 to 100 All other Data Spaces are unused by this module Example Input 3 of an M1403A module installed in Local Slot 6 can be read from DIT Address 2598 7 14 M1412A 8AO 8 way Anal...

Страница 44: ...t Input Type Bit 15 Unused will read as 0 Digital Inputs 17 32 where individual inputs are allocated as follows 1 Bit 0 Input 3 High Limit Bit 1 Input 3 High High Limit Bit 2 Input 3 Low Limit Bit 3 I...

Страница 45: ...ing 0 No Input Type Selected 40 Input is 0 10 Volts 41 Input is 2 10 Volts 42 Input is 0 5 Volts 43 Input is 1 5 Volts 44 Input is 0 1 Volt 60 Input is 0 20 mA 61 Input is 4 20 mA 62 Input is 0 50 mA...

Страница 46: ...6 Input 6 Low Limit 57 Input 6 Low Low Limit 58 Input 6 Deadband 59 Input 7 High High Limit 60 Input 7 High Limit 61 Input 7 Low Limit 62 Input 7 Low Low Limit 63 Input 7 Deadband 64 Input 8 High High...

Страница 47: ...guration Corrupted Bit 14 Input 2 Incorrect Input Type Bit 15 Input Burnout Digital Inputs 17 32 where individual inputs are allocated as follows 1 Bit 0 Input 3 High Limit Bit 1 Input 3 High High Lim...

Страница 48: ...d 1 Thermocouple Type K 2 Thermocouple Type J 3 Thermocouple Type E 4 Thermocouple Type N 5 Thermocouple Type T 6 Thermocouple Type R 7 Thermocouple Type S 8 Thermocouple Type B 20 milliVolts MilliVol...

Страница 49: ...nal CJC is selected this register must be set to the external CJC temperature in tenths of a degree C or F as set in Temperature Scale 29 Input 1 High High Limit set in display format 30 Input 1 High...

Страница 50: ...uration Corrupted Bit 14 Input 2 Incorrect Input Type Bit 15 Unused will read as 0 Digital Inputs 17 32 where individual inputs are allocated as follows 1 Bit 0 Input 3 High Limit Bit 1 Input 3 High H...

Страница 51: ...ut 4 Type 20 Input 5 Type 21 Input 6 Type 22 Configuration Registers Reserved set to 0 23 25 where Input Type is chosen from one of the following 0 No Input Type Selected 100 Input is PT 100 101 Input...

Страница 52: ...ital Inputs 17 32 where individual inputs are allocated as follows 1 Input 17 Bit 0 LSB Input 18 Bit 1 Input 19 Bit 2 Input 20 Bit 3 Input 21 Bit 4 Input 22 Bit 5 Input 23 Bit 6 Input 24 Bit 7 Input 2...

Страница 53: ...put and Analogue Output Data Spaces are unused by this module CONFIGURATION DATA SPACE DIT Offset Reserved 0 Input Sense Inputs 1 to 16 Bit 0 maps to input 1 1 Input Sense Inputs 17 to 32 Bit 0 maps t...

Страница 54: ...ut 12 Off Delay Time 47 Input 13 Off Delay Time 48 Input 14 Off Delay Time 49 Input 15 Off Delay Time 50 Input 16 Off Delay Time 51 Input 17 Off Delay Time 52 Input 18 Off Delay Time 53 Input 19 Off D...

Страница 55: ...agazine through your newsagent You establish a magazine subscription by telling the newsagent which magazine you want your home address and how often you want it and then the newsagent takes the respo...

Страница 56: ...ns can be configured between nodes in different directions each of which would operate independently of any other This provides far more flexibility than typical Poll Response Master Slave methods Dat...

Страница 57: ...ding or source node from which the required data originates This can be expressed as a local network address plus the local slot and port to which the network is connected or it can be expressed as a...

Страница 58: ...an be 10 seconds apart Local Port Number 0 The CONET network is Port 0 on the CPU Destination DIT Start Address 6000 This is the DIT Address where we want to start writing the received data Source Nod...

Страница 59: ...time stamped event information in non real time from a Maxiflex System configured as a Sequence of Events monitor that is detecting events in Real Time The Maxiflex System makes use of the M176xA 32S...

Страница 60: ...al performance i e how often a device can be polled for data It is possible to adjust the poll rate per query the delay between queries as well as the delay between the entire polling cycle The Modbus...

Страница 61: ...ential if the Slave device cannot cope with queries sent at full rate This delay must be specified in milliseconds E g if a delay of 100ms is required then the register must be set to 100 Inter poll D...

Страница 62: ...ic 250ms Cyclic 500ms Cyclic 1000ms Cyclic 2000ms Cyclic 5000ms Set disable to ensure the query is not executed at all Set One shot if its to be triggered manually Set As fast as possible or any other...

Страница 63: ...15 The DIT start bit specifies where in the DIT start register the digital functions 1 2 5 and 15 begin accessing the desired bits Table 10 1 Modbus Master Query Settings 10 4 Query Triggers Query Tr...

Страница 64: ...the Last Failed Query Refer to the Detailed DIT Layout for the DIT Location of this status register The Table below lists the various status codes for any given query Status Description 0 Query Messag...

Страница 65: ...you wish to implement some additional calculation or control The P3 CPU can be programmed in any of the IEC61131 3 programming languages using the Omniflex ISaGraf Programmer s Workbench Refer to the...

Страница 66: ...at are ON 1 ON 1 2 ON 2 3 ON 4 4 ON 8 5 ON 16 In this example an address of 2 is selected Switch 6 reserved always leave switched off Switch 7 Default Conet s 19200 baud Protocol Select Switch 7 ON Co...

Страница 67: ...witch 7 to ON and 8 to OFF on the serial port address selection switch This port is then configured as a Conet s port operating at 19 200 baud with 8 data bits no parity and 1 stop bits Switches 1 to...

Страница 68: ...utility It is also possible to configure a P3 CPU through any of its communications ports that have access to the DIT using any software capable of writing to the DIT registers of the CPU The full DIT...

Страница 69: ...f you are using a laptop that is not equipped with a serial port most USB to RS232 converter products available can be used Figure 11 2 Location of Programming Port Ensure that the Omniset software ut...

Страница 70: ...ow The COM Port should reflect the selected COM port in your PC 2 The Connection Information Group should now be properly displayed If you are not connected or the product type is not recognised then...

Страница 71: ...he configuration in your P3 target matches the configuration in the configuration file loaded in Omniset At the end any of these actions you will be given the opportunity to elect to stay in Synchroni...

Страница 72: ...tus registers identify any mismatches between the four I O Module Lists and the actual modules installed in each rack of the system The eight I O Module User Prog Status registers identify the mismatc...

Страница 73: ...Data Group shows the current time and date the time and date of the last power down and the time and date of the last power up To set the real time clock write the current time and date to the relevan...

Страница 74: ...Group 11 9 1 2 Modbus Data Register Mapping The Modus protocol supports a number of different types of data viz Digital Status Inputs Coil Outputs Input Registers and Holding Registers These Modbus Da...

Страница 75: ...1 3 Once the protocol selection has been made the rest of the Modbus Master configuration is done in the Modbus Master set of subgroups Figure 11 4 Configuring Modbus Master Queries It is necessary to...

Страница 76: ...is serial port The baud rate etc for this port is then set in the DIT 11 10 Configuring the Ethernet Network Port 11 10 1 Protocols supported simultaneously The Ethernet port on the P3e CPU s runs the...

Страница 77: ...ess etc in Omniset 11 10 3 Assigning a Node Address Both the Modbus TCP and the Conet e protocols also require a Node address to be specified sometimes called Unit ID or Slave Address This address is...

Страница 78: ...ming is IEC61131 3 The Maxiflex P3 CPU together with the Application Workbench conforms to this IEC standard for programming languages 12 1 2 The IEC61131 3 Programming Languages The IEC61131 3 standa...

Страница 79: ...IL 12 2 Programming the Maxiflex P3 CPU The Maxiflex P3 CPU can be programmed in any of the supported languages with the aid of the Omniflex ISaGraf Programmer s Workbench For program development the...

Страница 80: ...tup and then choose the desired Conet Port and Target Address for communicating with the P3 CPU Programming can be performed over Conet s through a serial port on the computer Conet c through a Conet...

Страница 81: ...settings match the following 12 4 3 Compiler Options Ensure that the following compiler options are selected in your Application Workbench for use with your Maxiflex P3 CPU 1 From within your open pr...

Страница 82: ...ect in accordance with the physical layout of modules installed on the Maxiflex Bases of your target system If the modules in the project do not match the modules on the Maxiflex base then your progra...

Страница 83: ...4 Slot No Remote 5 Slot No Remote 6 Slot No Remote 7 Slot No 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 PSU 17 1 18 2 19 3 20 4 21 5 22 6 23 7 24 8 25 9 26 10 27 11 28 12 29 13 30 14 31 1...

Страница 84: ...o Remote 5 Slot No Remote 6 Slot No Remote 7 Slot No 58 10 59 11 60 12 61 13 62 14 63 15 64 PSU 65 1 66 2 67 3 68 4 69 5 70 6 71 7 72 8 73 9 74 10 75 11 76 12 77 13 78 14 79 15 80 PSU 81 1 82 2 83 3 8...

Страница 85: ...e installed in any unused slots 4 Select Set Board Equipment from the Edit menu This selection can also be made by double clicking the Slot Number 5 The Application Workbench separates I O modules tha...

Страница 86: ...available when editing a program in the FBD language or by entering these functions as text in the ST or IL languages NOTE These functions are implemented immediately and are not synchronised to the...

Страница 87: ...nded DIT Range Use the MxDIT_CPY function to copy extended DIT s to from an unused local DIT area 12 6 1 3 DITBITRD Read a bit from a DIT Arguments Name In Out Type Description DIT IN Integer The DIT...

Страница 88: ...T register This function cannot be used to access the extended DIT Range Use the MxDIT_CPY function to copy extended DIT s to from an unused local DIT area 12 6 1 5 DITRDD Read a double word from the...

Страница 89: ...ouble word from the DIT swapped Arguments Name In Out Type Description DIT IN Integer The DIT Register Address from which to read the double word DVAL OUT Integer The 32 bit double word read in revers...

Страница 90: ...gister DIT and DIT 1 Description Use this function to read a 32 bit IEEE floating point real number from a local DIT register NOTE the word order for a real number read from DIT register n is as follo...

Страница 91: ...number read from DIT register n is as follows DIT n Least significant word DIT n 1 Most significant word This function cannot be used to access the extended DIT Range 12 6 1 12 DITWRRX Write a real nu...

Страница 92: ...ccess the extended DIT Range 12 6 1 14 DITWRT Write a timer to the DIT Arguments Name In Out Type Description DIT IN Integer The DIT Register Address at which to write the timer TVAL IN Timer The time...

Страница 93: ...t Type Description DIT IN Integer The DIT Register Address to which the message will be written LEN IN Integer The length of the message string or number of characters MESS IN Message Message written...

Страница 94: ...ule Arguments Name In Out Type Description VAL IN Integer Value of byte 0 255 OFFSET IN Integer Byte offset in the memory map of the module SLOT IN Integer I O slot where the module is installed F OUT...

Страница 95: ...n is not necessary 12 6 2 Using DIT Virtual I O Modules to access data in the DIT In the library of Maxiflex I O Modules are a number of virtual modules that do not represent actual Maxiflex Modules b...

Страница 96: ...Maxiflex P3 PAC User Manual 96 Omniflex UMM126XR18 pdf 12 6 2 2 MxDIT_DO Use this Virtual I O Module to write 16 Boolean outputs to the individual bits of a single local DIT register...

Страница 97: ...Maxiflex P3 PAC User Manual 97 Omniflex UMM126XR18 pdf 12 6 2 3 MxDIT_AI Use this Virtual I O Module to read 8 integers from a contiguous block of 8 local DIT Registers...

Страница 98: ...s 12 6 2 5 MxDITCPY Use this Complex Equipment Virtual I O Module to copy a block of DIT registers from one place to another This module can be used to copy blocks of DIT registers to from the slower...

Страница 99: ...and function blocks available in the Application Workbench some additional Function Blocks such as Auto tuning PID control blocks are available for the Maxiflex P3 CPU Details of these function block...

Страница 100: ...st comply with the requirements of a standard such as IEC61508 In some sense high availability and Functional Safety are related in that both concepts are concerned with the detection of failures and...

Страница 101: ...dundant System Architecture Overview The P3 R Redundant Controller is designed for applications where dual redundant CPU s are required connected to common Inputs and Outputs The dual redundant networ...

Страница 102: ...using 32 channel I O modules Both controllers read the same input information from the common I O via the Remote I O processors on each remote base in the system Only the active controller writes dat...

Страница 103: ...tus and make it available to Secondary Controller Check for change over instruction to Active from Secondary Controller Read Health Status from Secondary Controller Failure This mode of operation is a...

Страница 104: ...this parameter that determines which controller operates in the Active mode The health status is dependant upon the following three factors 13 4 3 1 Status of Supervisory Communications A controller...

Страница 105: ...by the Address set on the RIO NIM If the RIO NIM address is set to 1 then the P3 CPU will act as the primary controller If the RIO NIM address is set to 2 then the P3 CPU will act as the Secondary Co...

Страница 106: ...n the Data Interchange Table DIT into up to three blocks of any length You then configure the address and size of these Sync Blocks in the primary controller as shown below Figure 14 1 Setting the Syn...

Страница 107: ...hould be ON on both controllers and their SYNC LINK LED s should be on flashing OFF periodically to indicate activity on the Sync Link 14 10 Step 10 Check Remote I O Activity on Secondary Controller C...

Страница 108: ...ED will be on steady The RUN LED on the standby controller will be OFF if the controller is not ready to run or flashing if it is in standby ready to run NOTE Unplugging the Sync Link cable will not c...

Страница 109: ...no longer able to control the Primary changeover because the Secondary is in control 6 Change the Force Primary Failure setting from True to False 7 The Primary should once again resume control and t...

Страница 110: ...icator on the front of the CPU lights 15 2 Battery Replacement Procedure To replace the internal battery proceed as follows 1 Turn off power from the Maxiflex Base 2 Remove the CPU from the Base 3 Uns...

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