ProSoft Technology 5204SE-MNET-PDPMV1 - Manual (Page 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