Prosoft-technology 5204SE-MNET-PDPMV1 Manual do Utilizador descarregar pdf (Página 207)

Reference 5204SE-MNET-PDPMV1 ♦ ProLinx Gateway

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

ProSoft Technology, Inc. Page 207 of 235

December 22, 2009

If the request applies for only one slave, that Slave Address must be entered in

the range 1 to 125. If a slave group is to be addressed, Slave Address should be

127 (Multicast address).

Group Select

Range 01h to FFh (Bit Coded)

This parameter determines which group to address. Refer to the following

example:

b7 b6 b5 b4 b3 b2 b1 b0

Group 8 Group 7 Group 6 Group 5 Group 4 Group 3 Group 2 Group 1

Example: To address Group 1, 2, and 4, the Group Select value should be 0Dh.

If an individual slave should be addressed, the correct group selection must also

be made, because the slave will ignore the message if it does not belong to the

requested group(s).

What group(s) a slave belongs to is determined during network configuration,

and is downloaded during initialization to each slave via the PROFIBUS telegram

"Set_Prm".

Control Command

This parameter specifies the command to send:

Bit Explanation

0 (LSB) Reserved, set to zero

1 Reserved, set to zero

2 Unfreeze input data

3 Freeze input data

4 Unsynchronize output data

5 Synchronize output data

6 Reserved, set to zero

7 (MSB) Reserved, set to zero

Combinations of the bits (Unsync/Sync and Unfreeze/Freeze)

Bits 0 or 6 Bits 1 or 7 Explanation

0 0 No Function

0 1 Function will be activated

1 0 Function will be inactive

1 1 Function will be inactive

1 2 ... 202 203 204 205 206 207 208 209 210 211 212 ... 234 235

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Prosoft-technology 5204SE-MNET-PDPMV1 Manual do Utilizador Página 207