ProSoft Technology 5105-103M-PDPS - Manual (Page 112)

Reference 5105-103M-PDPS ♦ ProLinx Gateway
User Manual IEC 60870-5-103 Master to PROFIBUS Slave Gateway
Page 112 of 144 ProSoft Technology, Inc.
November 24, 2010
Pass-Through
The pass-through features allows you to page through the ProLinx data 4000
registers over the Profibus network, using mailbox commands. You can also use
mailbox commands to set and get time, and pass events. The following topics
describe the mailbox commands.
IMPORTANT NOTE: For these blocks to function properly over the Profibus network, the slave
must be configured for 100 words of input and 100 words of output, and the Pass-Through Events
parameter must be enabled in the configuration file, as shown in the following example.
Pass-Through Events : Y # Pass event messages through Profibus Interface
# (Y/N (N=Default))
Mailbox Commands
Start Stop Direction Description
100 101 PLC to GW Event Data
150 151 PLC to GW Database write transfer
160 161 GW to PLC Database read transfer
200 200 Both Set Time
201 201 Both Get Time
PLC = PROFIBUS master interface in PLC
GW = ProLinx Gateway
NOTES:
The block number for each device must be changed to trigger an operation.
The I/O data area is owned exclusively by only the PLC or GW.
A timeout must be implemented in the PLC in case the GW is not present.