A series – GE Industrial Solutions A Series Lighting Control Panelboards Modbus Register Map User Manual
Page 16
A Series
®
Lighting Controller Modbus Register Map
Physical Input Registers-Multistate Inputs (MI)
10
Read MI Reg15 to Reg18
Table 13 shows the result of a request to
read MI Reg15 to Reg18 (Function 4,
MI115–MI116 and MI201–MI202 in map).
Request
Response
Field Name
Hex Field Name
Hex
Device Address
01 Device Address
01
Function
04 Function
04
Register Address
Hi
00 Byte Count
08
Register Address
Lo
0E Input 115 Hi
00
Quantity of Input
Reg. Hi
00 Input 115 Lo
01
Quantity of Input
Reg. Lo
04 Input 116 Hi
00
Packet CRC Hi
Input 116 Lo
02
Packet CRC Lo
Input 201 Hi
00
Input 201 Lo
01
Input 202 Hi
00
Input 202 Lo
03
Packet CRC Hi
Packet CRC Lo
Table 13. Sample packet for read of MI Reg15 to Reg18.
Write to MI Reg15
Table 14 shows the result of a write to MI
Reg15 (Function 5 Single Write, MI115 in
map). Note that the packet shows an error,
since MI values are read only.
Request
Response
Field Name
He
x
Field Name
Hex
Device Address
01 Device
Address
01
Function
05 Error Code
85
Register Address Hi
00 Exception
Code
85
Register Address Lo
0E Packet CRC
Hi
Quantity of Input Reg.
Hi
00 Packet CRC
Lo
Quantity of Input Reg.
Lo
01
Packet CRC Hi
Packet CRC Lo
Table 14. Sample packet for write of MI Reg15.