PLX51-PBM
Operation
PROFIBUS DPV0/DPV1 Master or Slave to EtherNet/IP™ or Modbus® Gateway
User Manual
ProSoft Technology, Inc.
Page 133 of 196
Alarming
The user can extract DPV1 Alarm data from a field device using the configured
Modbus Registers. The user will need to enable DPV1 Alarm and set the required
DPV1 Alarm HR Offset in the Modbus addressing tab of the Configuration window
(see below).
Figure 5.14
– DPV1 Alarm Holding Register parameters
The user will need to setup the required messaging parameters in the Holding
Register fields and then set the trigger bit to enable the DPV1 Alarm retrieving to
begin. Once the transaction is complete the response part of the Holding Registers
will be updated.
NOTE: The user will need to toggle the trigger Holding Register from 0 to 1 before the transaction will
begin.
Below is the format of the Holding Registers used for DPV1 Alarming.
Table 5.50
– Modbus DPV1 Alarm Request Message Holding Register Format
Alarm Request
Holding
Register Offset
Description
Trigger
0
Bit 0
– Trigger Message Send
Timeout
1
The time in Milliseconds if no response has been received
before the transaction times out
Slave Address
2
Target PROFIBUS Slave node address
