Prosoft-technology 5204SE-MNET-PDPMV1 Instrukcja Użytkownika Pobierz pdf (Strona 214)

5204SE-MNET-PDPMV1 ♦ ProLinx Gateway Reference

Modbus TCP/IP to PROFIBUS DP-V1 Pass-Through Master User Manual

Page 214 of 235 ProSoft Technology, Inc.

December 22, 2009

4.6.10 Read Class 1 Acyclic Data Message Structure

Parameter Description

Command Initiator Application

Command Name FB_APPL_MSAC1_READ

Command Number 0020h

Fragmented No

Extended Header Data Fault information may be returned in the header of the response.

Command and Response Layout: Acyclic Read

Command Response

Message ID

(ID)

Acyclic Message Status

Word

4002h

0002h

Command 0020h

0020h Acyclic Class 1 Read

Data size 0000h

(Size of data) Number of data bytes (n)

Frame count 0001h

0001h

Frame number 0001h

0001h

Offset high 0000h

0000h

Offset low 0000h

0000h

Extended word 1 Slave Addr. Slot Number

Slave Addr. Slot Number

Extended word 2 Index Length Index Length

Extended word 3 -

Extended word 4 -

Extended word 5 -

Error

Decode

Extended word 6 -

Error Code 1

Error Code 2

Extended word 7 -

Extended Fault information

Extended word 8 -

Fault Information

Data 1 Response Data byte 1

Data 2 Response Data byte 1

Data 3 Response Data byte 1

... ...

Data n Response Data byte 1

Acyclic Message Status Word

Refer to Acyclic Message Status Word (page 218).

Slave Address

Station address of the slave responder.

1 2 ... 209 210 211 212 213 214 215 216 217 218 219 ... 234 235

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