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2-2

IM 34M06P15-03E 2nd Edition: Jan. 31, 2012-00

2.3

Data

Frames

The specifications of the Modbus/TCP data frames are as shown below.

F020301.VSD

Ethernet

Header

TCP

Header

Application Data

(Modbus/TCP ADU)

FCS

MBAP Header

PDU

Transaction

Protocol

Length

Unit ID

Function

Code

Data

Figure 2.3.1 Modbus/TCP Data Frames

MBAP Header

The Modbus Application Protocol (MBAP) header consists of seven bytes.

Table 2.3.1 MBAP Header

Name Size

Description

Transaction ID

2-byte

Freely selected value is specified to identify transactions of the master device.
The slave returns the received value.

Protocol ID

2-byte

"0" is specified if using the Modbus/TCP application protocol.

Length

2-byte

Byte count from after the unit ID.

Unit ID

1-byte

Used by the master when specifying the slave connected to another line via a

gateway or similar method.

Specifies the CPU number (1 to 4) executing commands.

The slave returns the received value.

*1:

The CPUs that can be specified are the sequence CPU F3SP22/28/38/53/58/59/66/67/71/76. It cannot be executed
for other CPUs.

Tip

"1" is specified for the unit ID if the access target is the CPU inserted into slot 1.

"2" is specified for the unit ID if the access target is the CPU inserted into slot 2 with the CPU
connected using Modbus/TCP is inserted in slot 1.

PDU

The Protocol Data Unit (PDU) is configured as follows.

Table 2.3.2 PDU

Name Size

Description

Function code

1-byte

Processing contents for the slave from the master.

Data

1 to 252 bytes

Parameters for the function code.

Содержание F3SP71-4S

Страница 1: ...TCP Functions IM 34M06P15 03E Applicable Modules Model Code Model Name F3SP71 4S Sequence CPU Module with network functions F3SP76 7S Sequence CPU Module with network functions IM 34M06P15 03E 2nd Edi...

Страница 2: ...Blank Page Blank Page...

Страница 3: ...free Multi controller FA M3 Model code Name F3SP71 4S Sequence CPU Module with network functions F3SP76 7S Sequence CPU Module with network functions The document number and document model code for t...

Страница 4: ...the attention of the user please contact the nearest Yokogawa Electric representative or sales office Safety Precautions when Using Maintaining the Product The following safety symbols are used on the...

Страница 5: ...uipment for the product and control system as well as designing or installing separate protection and or safety circuits for fool proof design and fail safe design of processes and lines using the pro...

Страница 6: ...the software for use with each additional computer Copying the software for any purposes other than backup is strictly prohibited Store the original media that contain the software in a safe place Rev...

Страница 7: ...eck them thoroughly before turning on the power Interlock with emergency stop circuitry using external relays Equipment incorporating the FA M3 controller must be furnished with emergency stop circuit...

Страница 8: ...PU module has a built in battery avoid storage in places with high temperature or humidity Since the service life of the battery is drastically reduced by exposure to high temperatures take special ca...

Страница 9: ...entation product Do not dispose in domestic household waste When disposing products in the EU contact your local Yokogawa Europe B V office How to Discard Batteries The following description on DIRECT...

Страница 10: ...Manual Functions for F3SP71 4N 4S F3SP76 7N 7S IM 34M06P15 01E Sequence CPU Network Functions for F3SP71 4N 4S F3SP76 7N 7S IM 34M06P15 02E z To create ladder programs FA M3 Programming Tool WideField...

Страница 11: ...h the latest version of the online manual Ensure that the edition agrees with the latest CD ROM version Copying passing selling or distribution including transferring over computer networks of the con...

Страница 12: ...Blank Page...

Страница 13: ...2 4 Function Codes 2 3 Support Function Codes 2 3 PDU Configuration 2 4 2 5 Response Error Code 2 5 2 6 Modbus Device Allocation Specifications 2 6 Modbus Device List 2 6 Modbus Device Associations 2...

Страница 14: ...oil 05 3 5 3 6 Write Single Register 06 3 6 3 7 Write Multiple Coils 0F 3 7 3 8 Write Multiple Registers 10 3 8 3 9 Read File Record 14 3 9 3 10 Write File Record 15 3 11 3 11 Mask Write Register 16 3...

Страница 15: ...It enables Modbus communication to receive process requests from a master device via Ethernet lines under Modbus commands As no programming is required on the module end this greatly simplifies creati...

Страница 16: ...module A monitor or PC is connected using Modbus TCP application protocol F010102 VSD FA M3 Modbus Command Ethernet SCADA 10BASE T 100BASE TX Connector Figure 1 2 1 Example Configuration of Modbus TC...

Страница 17: ...device writing using Modbus commands Yes Communication Functions The following table shows the communication specifications of the Modbus TCP slave function Table 2 1 2 Specifications of Higher level...

Страница 18: ...application protocol Length 2 byte Byte count from after the unit ID Unit ID 1 byte Used by the master when specifying the slave connected to another line via a gateway or similar method Specifies the...

Страница 19: ...5 holding registers Yes 04 04 Read Input Registers Consecutively reads the status of a max of 125 input registers Yes 05 05 Write Single Coil Writes a single coil Yes 06 06 Write Single Register Write...

Страница 20: ...Starting Holding Register No 001F Read Points 0001 31 001F is specified as the starting address of the holding register for reading holding register no 32 Figure 2 4 1 Specifying Device Numbers Device...

Страница 21: ...XX 1 byte Error Code 1 byte Figure 2 5 1 PDU at Faulty Completion The request function code 80 value is inserted in the function code XX z Response Error Code Table 2 5 1 Response Error Code Error Cod...

Страница 22: ...List Modbus devices are as defined below Devices are as described below Table 2 6 1 Modbus Device List Modbus Device Unit Direction Points Number Coil 1 bit Read Write 65 536 1 to 65536 Discrete input...

Страница 23: ...Relays I I00001 to I65535 65535 65536 00001 Figure 2 6 1 Associations of Coil Internal Relay I00001 is associated with 00001 of the coils The coil device number associated with an internal relay is c...

Страница 24: ...cial Relays M X00201 is associated with input 00065 The input device number associated with an input relay is calculated using the following formula Input device number Unit number x 1024 Slot number...

Страница 25: ...65536 00001 01025 Figure 2 6 3 Associations of Input Registers with Special Registers Z Z00001 is associated with 00001 of the input registers The input register device number associated with a specia...

Страница 26: ...ng Registers and Data Registers D D00001 is associated with 00001 of the holding registers The holding register device number associated with a data register is calculated using the following formula...

Страница 27: ...0001 is associated with record number 0000 of file number 0 The file and record numbers associated with file registers are calculated using the following formula File number File register number 10000...

Страница 28: ...tiple Coils 15 Shared Relay Special Relay Read Discrete Input 02 Timer Relay Counter Relay Bit Device Link Relay Read Holding Register 03 Write Single Register 06 Write Multiple Registers 16 Read Writ...

Страница 29: ...to prohibit device writing using the Modbus TCP slave function Table 2 8 2 Higher Level Link Service Settings Setting Description Setting Range Initial Value Higher Level Link Service Port A Protocol...

Страница 30: ...restricts the IP addresses allowed to access this module The initial value permits all IP addresses to access this module This setting is referenced from all functions that correspond to higher level...

Страница 31: ...n of the monitor Connecting to a PC z Connecting to a Program Created on a PC To connect to a program on a PC perform the following steps 1 Create a communication program on a PC using Visual Basic et...

Страница 32: ...Blank Page...

Страница 33: ...Code Data 01 1 byte 2 byte 2 byte Starting Coil Nos 0000 to FFFF Read Points 0001 to 07D0 Response Format Slave Master At Normal Completion Function Code Data 01 1 byte Read Length n 01 to FA 1 byte...

Страница 34: ...ta 02 1 byte 2 byte 2 byte Starting Input Nos 0000 to FFFF Read Points 0001 to 07D0 Response Format Slave Master At Normal Completion Function Code Data 02 1 byte Read Length n 01 to FA 1 byte 1 byte...

Страница 35: ...quest is 1 to 125 points Request Format Master Slave F030103 VSD Function Code Data 03 1 byte 2 byte 2 byte Starting Holding Register Nos 0000 to FFFF Read Points 0001 to 007D Response Format Slave Ma...

Страница 36: ...uest is 1 to 125 points Request Format Master Slave F030104 VSD Function Code Data 04 1 byte 2 byte 2 byte Starting Input Register Nos 0000 to FFFF Read Points 0001 to 007D Response Format Slave Maste...

Страница 37: ...ter Slave F030105 VSD Function Code Data 05 1 byte 2 byte 2 byte Coil Nos 0000 to FFFF Specified Value 1 FF00 0 0000 Response Format Slave Master At Normal Completion At Faulty Completion Function Cod...

Страница 38: ...e F030106 VSD Function Code Data 06 1 byte 2 byte 2 byte Holding Register Nos 0000 to FFFF Write Points 0000 to FFFF Response Format Slave Master At Normal Completion At Faulty Completion Function Cod...

Страница 39: ...r level bit order bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 Device Data 1 Device Data n 0 OFF 1 ON Function Code Data 0F 1 byte Starting Coil Nos 0000 to FFFF Write Points 0001 to 07B0 Write Length n 01...

Страница 40: ...8 VSD Function Code Data 10 1 byte 2 byte 2 byte Starting Holding Register Nos 0000 to FFFF Write Points 0001 to 007B Response Format Slave Master At Normal Completion At Faulty Completion Function Co...

Страница 41: ...Nos 0000 to FFFF Read Starting Record Nos 0000 to 270F 2 byte Sub request 1 2 byte Read Record Count 0000 to 007C n1 Data Reference No 06 1 byte 2 byte File Nos 0000 to FFFF Read Starting Record Nos 0...

Страница 42: ...At Faulty Completion Function Code Data 14 1 byte 1 byte Length Data Reference No 06 1 byte 2 byte Sub request 1 2 byte 1 byte Read Data Size n1 2 1 Data 1 Data n1 Data Reference No 06 1 byte 2 byte S...

Страница 43: ...s 0000 to FFFF Write Starting Record Nos 0000 to 270F 2 byte Sub request 1 2 byte Write Record Count 0000 to 007A n1 Data 1 Data n1 2 byte 2 byte Request Format Master Slave Data Reference No 06 1 byt...

Страница 44: ...1 byte 2 byte File Nos 0000 to FFFF Write Starting Record Nos 0000 to 270F 2 byte Sub request 1 2 byte Write Record Count 0000 to 007C n1 Data 1 Data n1 2 byte 2 byte Data Reference No 06 1 byte 2 by...

Страница 45: ...written value Response Format Slave Master F030113 VSD Function Code Data 16 1 byte 2 byte 2 byte Starting Register Nos 0000 to FFFF AND Mask Value 0000 to FFFF Response Format Master Slave At Normal...

Страница 46: ...tion Code Data 17 1 byte 2 byte 2 byte Read Starting Holding Register Nos 0000 to FFFF Read Points 0001 to 007D n Response Format Slave Master At Normal Completion At Faulty Completion Data 97 1 byte...

Страница 47: ...gle request is 1 to 31 points Request Format Master Slave F030115 VSD Function Code Data 18 1 byte 2 byte FIFO Pointer Nos 0000 to FFFF Response Format Slave Master At Normal Completion At Faulty Comp...

Страница 48: ...Blank Page...

Страница 49: ...5 03E Edition Date Revised Item 1st June 2011 New publication 2nd Jan 2012 Errata Written by PLC Group International Sales Promotion Dept IA Systems Business Headquarters Yokogawa Electric Corporation...

Страница 50: ...Blank Page...

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