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Data inside the internal meter
Here is a list of what to read from the internal meter
Note: Tags with
(ASCII)
in their name can be used with M-Bus ASCII. If you have a Modbus client which
supports strings you may use these tags as well.
Modbus registers and Modbus register list
For the internal meter in PiiGAB 900 there are Modbus registers bound to each OPC-tag. The
configuration of the Modbus registers can only be altered from this point. They will not affect the other
meters’ Modbus registers. But if not correctly configured the Modbus register may overlap each other.
Please see the
Modbus register list
function in PiiGAB Explorer to verify Modbus register don’t overlap if
you change them.
1.
Go to
Tools
menu
2.
Press
Modbus Register List
Name
Data type
Scaled
by
Description
Modbus
Start
#
Characters
ID
VT_I4
PiiGAB 900’s S/N
N/A
N/A
N/A
Voltage
VT_R4
0,1
Voltage on M-Bus loop
N/A
N/A
N/A
Current
VT_R4
0,1
Current on M-Bus loop
N/A
N/A
N/A
Error
VT_I4
PiiGAB 900 error status
N/A
N/A
N/A
ID (Modbus)
VT_I4
PiiGAB 900’s S/N
0
2
N/A
Voltage (Modbus)
VT_R4
0,1
Voltage on M-Bus loop
2
2
N/A
Current (Modbus)
VT_R4
0,1
Current on M-Bus loop
4
2
N/A
Error (Modbus)
VT_I4
PiiGAB 900 error status
6
2
N/A
ID (ASCII)
VT_BSTR
PiiGAB 900’s S/N
8
4
8
Voltage (ASCII)
VT_BSTR
0,1
Voltage on M-Bus loop
12
2
4
Current (ASCII)
VT_BSTR
0,1
Current on M-Bus loop
14
2
4
Error (ASCI))
VT_BSTR
PiiGAB 900 error status
16
5
10
