Real Time Automation, Inc.
21
1-800-249-1612
Modbus RTU Slave Data Group Configuration: Auto-Configure
While in either of the two Auto-Configure modes, the # of Data Groups and the actual Data Groups
themselves cannot be edited. Auto-Configure Mode looks at the other protocol and then configures the
data groups to match. The data formats will be defined after the other protocol is configured.
The data will be configured according to the following rules:
1)
Any Coils, 8 Bit Signed/Unsigned, or 1/8/16/32 Bit Binary Packs data will be mapped as
0x Coil
Status.
2)
Any 16 Bit Signed/Unsigned data will be mapped as
4x Hold Reg
16 Bit Int or 16 Bit Uint
,
matching
signs whenever possible.
3)
Any 32 Bit Signed/Unsigned data will be mapped as
4x Hold Reg 32 Bit Int or 32 Bit Uint
,
matching
signs whenever possible.
4)
Any 64 Bit Signed/Unsigned data will be mapped as
4x Hold Reg 64 Bit Int or 64 Bit Uint
,
matching
signs whenever possible.
5)
Any 32 Bit Float will be mapped as
4x Hold Reg 32 Bit Float
.
6)
Any 64 Bit Float will be mapped as
4x Hold Reg 64 Bit Float
.
7)
Any String data types will be mapped as
4x Hold Reg String
.
8)
The Read or Write direction depends on whether it is configured as a Read or Write on the other
protocol.
9)
If the other protocol exceeds the number of gata groups supported, then nothing will be mapped.
You will see the # of Data Groups remain at 0 and the main page will display the following error:
a)
To fix this error, simply decrease the amount of data you configured on the other protocol so
that the max number of Data Groups is not exceeded or call customer support to increase the
limits.
To add additional or edit existing data groups you will need to go into Manual Configure Mode.
