Alm-04-Mrtu Address Mapping - ICP DAS USA ALM-04-MRTU User Manual

4.4 ALM-04-MRTU Address Mapping

Modbus Address(MB Addr) Base: 0x00
Address MB Addr
00001 0
✽ Length must always be 1.
Address MB Addr
10001~
0 ~ 3
10004
Table 4-6: FC02 Read Discrete Inputs address (1xxxx)
Address MB Addr
40001 0
✽ Length must always be 1.
Table 4-7: FC03 Read multiple Output registers address (4xxxx)
Address MB Addr
00001 0
✽ Length must always be 1.
Address MB Addr
40001 0
40002 1
Table 4-9: FC06 Write single Output registers address (4xxxx)
ALM-04-MRTU User's Manual
CH Descriptions
1 Digital Output
Table 4-5: FC01 Read Coil address (0xxxx)
CH Descriptions
1 ~ 4 Digital Input
CH Descriptions
- Volume Level
CH Descriptions
1 Relay Output
Table 4-8: FC05 Write single Coil address (0xxxx)
CH Descriptions
- Volume Level
- Play Back Alarm Index
ALM-04-MRTU
User's Manual (Rev1.0, Jan./2020) ------------- 25
Range(Byte)
0=OFF, 1=ON
Range(Byte)
0=OFF, 1=ON
Range(INT16)
0 ~ 10
Range(Byte)
0x00=OFF, 0xFF=ON
Range(INT16)
0 ~ 10
0: Stop Playback
1~15: Alarm Index
Type
R
Type
R
Type
R
Type
W
Type
W
W