4 Configuring the device
4.4 MODBUS register
NZM-XMC Measuring and Communication Module
11/16 MN01219001Z-EN
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37
If you are using a transformer with a ratio of 1:1, enter the primary current
times five. Using the above example, the transformer would be 300/1 A and
a value of 1500 would have to be entered into the register.
4.4.5 Configuring the outputs
The outputs Q1 and Q2 can be used in three different ways:
•
Remote output,
•
Alarm output
•
Pulse output for energy values
Remote output
The outputs can be switched with direct Modbus RTU commands. This is
intended for driving remote operators for circuit-breakers, for example.
If TRUE is written to coil 1, output 2 will be activated; if, in contrast, FALSE is
written to coil 1, output 2 will be de-energized.
Alarm output
Table 14: Registers for alarm messages
Coil
Out
0
1
1
2
Out
Register area
1
1150 - 1155
2
1200 - 1205
Register
Variable
Value range
1150, 1151
Maximum value
Depends on parameter (default: 0)
1152, 1153
Minimum value
Depends on parameter (default: 0)
1154
Delay
0 - 9999 seconds (default: 0)
1155H
1)
Parameter code
1 - 48 (no energy values)
1155L
2)
Free
–
1) H = High byte
2) L = Low byte
→
In order to activate the changes, write TRUE to coil 2000 as the
next frame.