ProSoft Technology PTQ-PDPMV1 - Manual (Page 90)

Configuring the Processor with Unity Pro PTQ-PDPMV1 ♦ Quantum Platform
User Manual PROFIBUS DP Master Network Interface Module for Quantum
Page 90 of 306 ProSoft Technology, Inc.
August 12, 2014
At this point, you should notice the following LED display, indicating that the
module’s mode was changed to OPERATE:
LED Status
MSTR STAT GREEN
COM STAT GREEN or OFF
DBASE STAT GREEN
TK HOLD GREEN
The COM STAT LED will be either GREEN if the Master is communicating with
all slaves, blinking if it is communicating with some of the slaves or OFF if it is not
communicating with any slaves.
You will also notice that the function block automatically clears the trigger byte
after it receives the acknowledgment from the module.