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I-E96-217A

2 - 1

SECTION 2 - DESCRIPTION AND OPERATION

INTRODUCTION

This section explains the logic and I/O circuitry, data, logic
power and connections for the Serial Port Module (SPM). The
SPM is an interface that allows a computer access to INFI 90
modules (e.g., Multi-Function Processor/Controller, Analog
Master Module or Controller Modules) in a Process Control
Unit (PCU). It gives the ability to manipulate or monitor INFI 90
module activity using an external computer with Bailey Con-
trols software. Using an SPM, a computer can obtain module
I/O and status data, change module mode, and configure,
modify or monitor module functions (i.e., function blocks).

The SPM communicates with INFI 90 devices over a two-line
serial module bus as shown in Figure

. Each module on the

module bus, including the SPM, has a unique address set by
its address dipswitch. Messages are directed to individual
modules using this address.

The SPM supports two serial ports: port 1 and port 2. It can be
setup in any of the following combinations:

1. A computer or modem connected to the permanent
RS-232C connector (port 2) at the module faceplate. A ribbon
cable connects this faceplate connector to socket XU37.

2. A computer or modem connected to the permanent, face-
plate RS-232C connector, and a diagnostic terminal connected
to port 1 through an optional Termination Unit (TU) with
RS-232C connectors (NTCU01).

3. A computer or modem connected to one RS-232C connec-
tor provided on the TU, and the diagnostic terminal connected
at the second RS-232C provided on the TU. A termination
cable routes the data and handshaking signals between the TU
and SPM.

Normally, the faceplate RS-232C connector provides computer
or modem connection. This connector eliminates the need for
permanent installation of a TU and cables.

MODULE BLOCK DIAGRAM

An SPM is a stand-alone module. It contains all logic and con-
trol circuitry required to:

•

Receive and interpret serial computer commands.

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Содержание Infi 90 IMSPM01

Страница 1: ... Process Control and Automation Solutions from Elsag Bailey Group E96 217 Serial Port Module IMSPM01 ...

Страница 2: ...MENTS ÉLECTRONIQUES SONT SENSIBLES AUX PERTURBATIONS PAR FRÉQUENCE RADIO DES PRÉCAUTIONS DEVRONT ÊTRE PRISES LORS DE L UTILISATION DU MATÉ RIEL DE COMMUNICATION PORTATIF LA PRUDENCE EXIGE QUE LES PRÉCAUTIONS À PRENDRE DANS CE CAS SOIENT SIGNALÉES AUX ENDROITS VOULUS DANS VOTRE USINE PERTURBATIONS DU PROCÉDÉ L ENTRETIEN DOIT ÊTRE ASSURÉ PAR UNE PERSONNE QUALIFIÉE EN CONSIDÉRANT L ASPECT SÉCURITAIRE...

Страница 3: ...nctions monitor module status and transfer data between it and PCU modules This instruction explains the module features specifications and operation It details the procedures to follow to set up and install an SPM It explains troubleshooting maintenance and module replacement procedures The system engineer or technician using the SPM should read and understand this instruction before installing a...

Страница 4: ...Original 5 1 through 5 7 Original 6 1 Original 7 1 Original 8 1 Original A 1 through A 2 Original When an update is received insert the latest changed pages and dispose of the super seded pages NOTE On an update page the changed text or table is indicated by a vertical bar in the outer mar gin of the page adjacent to the changed area A changed figure is indicated by a vertical bar in the outer mar...

Страница 5: ...l Handling This module uses Electrostatic Sensitive Devices ESD AVERTISSEMENT D ORDRE GENERAL Environment de l Equipement Ne pas soumettre les composants a une atmosphere corrosive lors du transport de l entreposage ou de l utilisation Risques de chocs electriques lors de l entretien S assurer de debrancher l alimentation ou de prendre les precau tions necessaires a eviter tout contact avec des co...

Страница 6: ...US 2 5 MODULE BUS DATA 2 6 POWER 2 7 MACHINE FAULT TIMER 2 7 ON LINE TESTS 2 7 STATUS LED INDICATOR 2 8 SERIAL PORT CONFIGURATION 2 8 SECTION 3 INSTALLATION 3 1 INTRODUCTION 3 1 SPECIAL HANDLING 3 1 UNPACKING AND INSPECTION 3 1 SETUP PHYSICAL INSTALLATION 3 2 Address Switch S2 Settings 3 2 Port Option Switch S3 Settings 3 4 Port Operational Option Switch S4 Settings 3 4 Jumper Configuration 3 5 Ju...

Страница 7: ... LED 5 1 SERIAL PORT AND MODULE BUS CHECKOUT 5 2 Serial Port Checkout Procedures 5 2 Module Bus Checkout Procedures 5 4 MODULE PIN OUT 5 5 SECTION 6 MAINTENANCE 6 1 INTRODUCTION 6 1 MAINTENANCE SCHEDULE 6 1 SECTION 7 REPAIR REPLACEMENT PROCEDURES 7 1 INTRODUCTION 7 1 MODULE REPAIR REPLACEMENT PROCEDURES 7 1 SECTION 8 SUPPORT SERVICES 8 1 INTRODUCTION 8 1 REPLACEMENT PARTS AND ORDERING INFORMATION ...

Страница 8: ... During Normal Operation 4 3 A 1 NTCU01 Schematic Diagram A 1 A 2 SPM to Optional Termination Unit Cable Connections A 2 List of Tables No Title Page 2 1 SPM Resident Functions 2 6 3 1 Address Switch S2 Settings 3 3 3 2 Port Option Switch S3 Settings 3 4 3 3 Port Operational Option Switch S4 Settings 3 5 4 1 MSPM01 Module Status LED Indicator 4 2 5 1 Status LED Indications and Corrective Actions 5...

Страница 9: ...nection capability eliminates the need for additional termination hard ware and cabling An optional Termination Unit TU with RS 232C connectors can be installed to connect a diagnostic terminal to port 1 on the SPM A diagnostic terminal can be used to verify module bus communication and to perform SPM tests When the SPM is installed in a PCU without the optional TU the computer or modem connects t...

Страница 10: ...able routes signals from this connector to socket XU37 on the PCB Normally the faceplate connector provides the com puter or modem connection however the optional TU can also be used This optional TU must be installed to connect a diag nostic terminal to the second SPM serial port port 1 Three dipswitches mounted on the circuit board set Module address S2 Byte framing and parity for both serial po...

Страница 11: ...cts data and handshaking lines between the SPM and a Termina tion Unit TU refer to Table 5 4 Two RS 232C ports for com puter or modem and diagnostic terminal connection are located on the TU FEATURES Modular Design The modular design of the SPM as with all INFI 90 modules allows for flexibility when creating a process management strategy Configuring the module switches and jumpers and installing t...

Страница 12: ...n routine maintenance as defined in Section 6 the SPM does not have any special maintenance requirements An SPM module can be removed or installed without powering the system down INSTRUCTION CONTENT This manual consists of eight sections Introduction Is an overview of the SPM Features description and specifica tions Description and Operation Explains the module operation and circuitry Installatio...

Страница 13: ...eive and transmission Baud Rate The rate at which data is transmitted over a serial bus One baud equals one bit per second Checksum The sum of all bytes in memory Software security checks use this to verify software and hardware integrity Configuration A control strategy with function blocks DCE Data Communication Equipment equipment that establishes and terminates a communication link between two...

Страница 14: ...INFI 90 modules Module Bus A peer to peer communication path for status and point data transfer between intelligent modules within a process control unit MSB Most Significant Bit the bit of a binary number that carries the most numeri cal weight Parity Bit An extra bit added to a byte character or word to ensure that there is always either an even number or odd number of bits according to the logi...

Страница 15: ...there until power is removed TU Termination Unit provides input output connection between plant equipment and the INFI 90 process modules The termination unit is a flat circuit board for panel mounting UART Universal Asynchronous Receiver Transmitter a device that converts paral lel data into serial form for transmission along a serial interface and vice versa UVROM Ultraviolet Read Only Memory a ...

Страница 16: ...e Jumper selectable 300 1200 2400 9600 19200 Computer Interface Full duplex serial data EIA standard RS 232C Software Twelve resident I O functions Module Bus Interface Access to all modules in a single PCU Mounting Occupies one slot in standard INFI 90 Module Mounting Unit Environmental Ambient Temperature Relative Humidity Altitude Air Quality 0 to 70 C 32 to 158 F 0 to 95 up to 55 C 131 F nonco...

Страница 17: ...ed to individual modules using this address The SPM supports two serial ports port 1 and port 2 It can be setup in any of the following combinations 1 A computer or modem connected to the permanent RS 232C connector port 2 at the module faceplate A ribbon cable connects this faceplate connector to socket XU37 2 A computer or modem connected to the permanent face plate RS 232C connector and a diagn...

Страница 18: ...It directs all functions per formed by the SPM The microprocessor receives computer generated commands and interprets these instructions to execute programs stored permanently in ROM Execution of the specified program will generate the necessary module address and instruction codes i e command codes a module in a PCU requires to accom plish the computer directed function This data request or comma...

Страница 19: ...e CPU conducts self tests to determine operating status of the SPM circuitry Refer to ON LINE TESTS in this section for further explanation Status Register The status register holds the address set on the address switch S2 and various status bit information relating to module bus interface functions Option Switch Register The option switch register holds the values set on the port option switch S3...

Страница 20: ...erface cir cuitry The different data and command messages transmitted serially on the module bus vary in length i e number of bytes An open collector bus driver circuit is the receive and transmit point for these serial module bus messages entering or leaving the SPM A UART performs serial to parallel and parallel to serial conver sion on data received or transmitted by the SPM UART data registers...

Страница 21: ...oscillator to develop clock signals required to provide the jumper selectable baud rates The SPM can be set to a 300 1200 2400 9600 or 19 2 Kbaud rate using jumper JP9 and JP10 The selected frequency is sent to the ACIAs JP9 sets port 1 rate and JP10 sets port 2 rate Refer to SERIAL PORT CONFIGURATION in this section for an explanation of handshaking and data signals and connections for the RS 232...

Страница 22: ... for an explanation of these functions and their use The SPM generates a module bus message and directs this message to a module on the module bus The message con tains Destination address 0 to 31 Source module address SPM address Message code function to perform Data dependent on the type of command Checksum generated by module bus interface function Table 2 1 SPM Resident Functions Command Funct...

Страница 23: ...e SPM is a secu rity feature common to all microprocessor based INFI 90 mod ules The timer is reset periodically by the microprocessor approximately once every 2 2 seconds If it is not reset within this time the timer expires causing the module to shut down time out It is reset on power up or by the manual reset switch accessed through the module faceplate If a time out occurs the front panel modu...

Страница 24: ...o indicate the cur rent on line test being run and its result and the sequence of computer commands and SPM replies Section 4 explains the LED indications and Section 5 explains corrective actions to take SERIAL PORT CONFIGURATION Access to both SPM serial ports port 1 and port 2 is available at the P3 edge connector or at sockets XU37 and XU38 The faceplate connector provides connection to port 2...

Страница 25: ...e electrically connected to the equipment frame Pin 2 TRANSMITTED DATA TX DATA Serial data line that is a serial data output from the DTE to a DCE For the SPM this is the serial data input line Pin 3 RECEIVED DATA RX DATA Serial data line that is a serial data input to the DTE from a DCE For the SPM this is the serial data output line Pin 4 REQUEST TO SEND RTS DTE output signal line that it uses t...

Страница 26: ...on point The Bailey Controls software requirements are the same as for the CTS signal Pin 7 SIGNAL GROUND SIG GND This is a common line for all signals Pin 8 RECEIVED LINE SIGNAL DETECT RLSD DTE input signal line that indicates that a valid communication link has been established between the DTE and DCE For the SPM this signal indicates when access to the module bus is possible The communication l...

Страница 27: ...DESCRIPTION AND OPERATION I E96 217A 2 11 All other RS 232C pin connections are not required and are not connected on the SPM Their presence or absence does not effect the SPM operation ...

Страница 28: ...c sensitive devices Follow Steps 1 through 4 when handling 1 Keep the module in its special anti static bag until you are ready to install it in the system Save the bag for future use 2 Ground the anti static bag before opening 3 Verify that all devices connected to the module are properly grounded before using them 4 Avoid touching the circuitry when handling the module UNPACKING AND INSPECTION 1...

Страница 29: ...Connecting RS 232 cables NOTE Jumpers JP1 and JP2 are factory installed ROM compatibil ity jumpers DO NOT change or remove them Removing or chang ing the jumpers will cause the module to operate incorrectly A jumper should be installed across pins 2 and 3 of JP1 and pins 2 and 4 of JP2 After the SPM is installed the serial port checkout i e echo test and module bus checkout test can be run to veri...

Страница 30: ...N SWITCH JP12 3 2 1 JP1 1 2 3 JP9 19 2K 9 6K 2 4K 1 2K 300 JP10 JP6 1 2 3 JP5 1 2 3 JP4 1 2 3 JP3 1 2 3 JP11 1 2 3 XU37 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 XU38 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 Table 3 1 Address Switch S2 Settings Address MSB LSB 1 2 3 4 5 Address MSB LSB 1 2 3 4 5 0 1 2 3 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 1 1 16 17 18 19 1 0 0 0 0 1 0 0 0 1 1 0 0 1 0 1 0 0 1 1 4 5 6 7 ...

Страница 31: ...N OFF to use the values set on S3 for port 2 i e computer port and to set port 1 to eight data bits one stop bit and even parity Port Operational Option Switch S4 Settings The port operational option switch S4 sets normal opera tional options and test mode options for both serial ports When operating with Bailey Controls software and equipment the normal position for the four S4 dipswitch position...

Страница 32: ...anation about the serial port config uration refer to SERIAL PORT CONFIGURATION in Section 2 NOTE This instruction identifies ALL RS 232C handshaking signals with respect to the DTE device JUMPERS JP3 JP5 Jumpers JP3 and JP5 are for the Request To Send RTS hand shaking lines of the RS 232C serial ports JP3 for port 1 and JP5 for port 2 These are input lines to the SPM that signal a request from a ...

Страница 33: ...and 3 of JP4 and JP6 This causes each ACIA circuit to be continuously enabled For special applications these lines can be enabled by placing jumpers across pins 1 and 2 of JP4 and JP6 If port 1 diagnostic port is not used a jumper is not required for JP4 Figure 3 1 shows the location of JP4 and JP6 NOTE When JP4 and JP6 are configured to provide a continuous enable signal to their respective ACIAs...

Страница 34: ... Refer to the product instruction for the computer system you are using for the required baud rate setting Physical Installation The SPM inserts into a standard INFI 90 Module Mounting Unit MMU and occupies one slot To install NOTE Configure the SPM jumpers and switches BEFORE installing 1 Verify the slot assignment of the module 2 If a TU is used to connect a diagnostic terminal connect the hoode...

Страница 35: ... to logic power 5 VDC and 15 VDC necessary to operate its cir cuitry It also connects to the module bus for communication with other modules P1 connection requires no additional wir ing or cabling Cable Connections Faceplate RS 232C Cable Connection An RS 232C cable connects a DTE e g computer or DCE e g modem device to the SPM faceplate connector This cable routes the handshaking signals and data...

Страница 36: ...able to the SPM face plate serial port 2 Connect the other end of the cable to the DTE or DCE device serial port If a diagnostic terminal is not being used installation is com plete If it is being used refer to Appendix A for cable connec tions FUSING The SPM does not have any on board fusing requirements PRE OPERATING ADJUSTMENTS There are no adjustments to be performed prior to operating the SPM...

Страница 37: ... status LED indicator and a group of four status LEDs These LEDs are visible through the SPM faceplate Figure 4 1 shows the location of these indicators and the faceplate RS 232C connector Module Status LED Table 4 1 explains the three states of the module status LED indicator refer to Section 5 to determine corrective actions Figure 4 1 IMSPM01 Front Panel MODULE STATUS STATUS LED GROUP RESET SWI...

Страница 38: ...n the group lights indicating the comple tion of the ROM test and start of the RAM test Then all four LEDs light to indicate completion of the RAM test and that the SPM is ready and waiting for the first computer initiated com mand NOTE A failure of either test results in a time out which lights the module status LED red Normal Operation LED Sequence After the start up is complete the LEDs maintai...

Страница 39: ...s accord ingly If the module status LED is not solid green after installa tion and the start up sequence i e on line tests refer to Section 5 for corrective actions Once the module is on line and operating observe the status LED group to determine the sequence of operations currently being performed by the SPM Figure 4 3 Status LED Group Sequence During Normal Operation WAITING FOR FIRST COMMAND F...

Страница 40: ...e status LED group can be observed during start up to determine the current on line test being run It can also be observed during normal operation to determine the current computer command and SPM reply sequence Refer to Section 4 to interpret the start up indications NOTE If you determine the SPM is faulty replace it with a new one DO NOT try to repair the module replacing components may affect t...

Страница 41: ...the SPM serial port the diagnostic terminal is connected to operates properly The echo test checks the SPM receive and send operations It also checks the connections between the SPM and the termi nal To run the test 1 Set S4 dipswitch position 3 on the SPM to OPEN OFF to initiate the echo test Take note of the byte framing and parity Table 5 1 Status LED Indications and Corrective Actions LED Stat...

Страница 42: ...other end of the RS 232C cable to the diagnos tic terminal and turn the diagnostic terminal ON 6 Type any character on the terminal keyboard The SPM sta tus LED group should increment each time a character is typed and the terminal monitor should display the typed char acter 7 If the terminal or SPM does not respond check the cable connection and verify that the byte framing and parity is set the ...

Страница 43: ...ion in Section 3 Observe the module LEDs to verify proper start up If the module status LED does not light green refer to Table 5 1 to interpret indica tions and determine corrective actions 3 Set the diagnostic terminal byte framing and parity to match the SPM NOTE Make sure the diagnostic terminal power is OFF before con necting the RS 232C cable 4 Connect a RS 232C cable to port 1 i e computer ...

Страница 44: ... the Computer Interface Unit Programmer s Reference Manual I E93 905 9 or the product instruction for the module being checked to interpret status bytes 9 If S4 dipswitch position 1 was changed in Step 1 remove the module and return the dipswitch to its original position If not connect the SPM for operation Refer to Section 3 MODULE PIN OUT Table 5 2 shows the pin connections for edge connector P1...

Страница 45: ...R 15 10 SIGNAL GROUND SIG GND PORT 2 P3 Pin XU37 Signal A E 1 6 NC1 F 10 SIGNAL GROUND SIG GND H 14 RECEIVE DATA RX DATA J 10 SIGNAL GROUND SIG GND K 15 TRANSMIT DATA TX DATA L 10 SIGNAL GROUND SIG GND M 9 11 12 CLEAR TO SEND CTS 2 N 10 SIGNAL GROUND SIG GND P 13 REQUEST TO SEND RTS S 7 DATA TERMINAL READY DTR R 10 SIGNAL GROUND SIG GND NOTES 1 NC Not Connected 2 For the SPM the Data Set Ready DSR...

Страница 46: ...nals and how they relate to the SPM Table 5 4 SPM Faceplate RS 232C Connector Pinout Pin Signal 1 PROTECTIVE GROUND PROT GND 2 TRANSMITTED DATA TX DATA 3 RECEIVED DATA RX DATA 4 REQUEST TO SEND RTS 5 CLEAR TO SEND CTS 6 DATA SET READY DSR 7 SIGNAL GROUND SIG GND 8 RECEIVED LINE SIGNAL DETECT RLSD 20 DATA TERMINAL READY DTR ...

Страница 47: ...orm the tasks in Table 6 1 at the specified intervals Table 6 1 Maintenance Schedule Task Interval Clean and tighten all power and grounding connections Every 6 months or during plant shut down whichever occurs first Use a static safe vacuum cleaner to remove dust from Modules Module Mounting Unit Fan Assembly Power Entry Panel Termination Units Modules Every 6 months or during plant shut down whi...

Страница 48: ...en the slots on the screws are vertical and the open end of the slots face away from the module 3 Gently slide the module out of the MMU 4 Configure the replacement module switch and jumper set tings Ensure they are set the same as the original module 5 In the same slot assignment as the original module align the replacement module with the guide rails in the MMU gen tly slide it in until the fron...

Страница 49: ...erial numbers if applicable 3 Bailey instruction manual number page number and refer ence figure that identifies the part Order parts without commercial descriptions from the nearest Bailey Controls sales office TRAINING Bailey Controls has a modern training facility that provides service and repair instruction This facility is available for in plant training of your personnel Contact a Bailey Con...

Страница 50: ... the SPM to the TU This cable connects the handshaking signal and data lines between the SPM and TU The same RS 232C cable wiring requirements shown in Figure 3 2 apply when connecting Data Terminal Equipment DTE e g computer or diagnostic terminal or Data Communication Equipment DCE e g modem to the RS 232C connectors on the NTCU01 To determine TU signal routing refer to Figure A 1 This figure is...

Страница 51: ...required when installing the optional NTCU01 Figure A 2 SPM to Optional Termination Unit Cable Connections IMSPM01 NKTU01 P1 P3 P1 NTCU01 TP27272A ALTERNATE CONNECTION POINT FOR COMPUTER OR MODEM PORT 2 TO DIAGNOSTIC MONITOR PORT 1 RS 232 CABLE RS 232 CABLE P3 P2 ...

Страница 52: ... 8756 ASIA PACIFIC 152 Beach Road Gateway East 20 04 Singapore 189721 Telephone 65 391 0800 Telefax 65 292 9011 EUROPE AFRICA MIDDLE EAST Via Puccini 2 16154 Genoa Italy Telephone 39 10 6582 943 Telefax 39 10 6582 941 GERMANY Graefstrasse 97 D 60487 Frankfurt Main Germany Telephone 49 69 799 0 Telefax 49 69 799 2406 Form I E96 217A Litho in U S A 391 Copyright 1991 by Elsag Bailey Process Automati...

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