GE Industrial Solutions A Series Lighting Control Panelboards Modbus Register Map - Manual (Page 28)

A Series ® Lighting Controller Modbus Register Map
Feedback Registers
22
Feedback Registers
The feedback value of the Binary outputs(BO) is mapped
starting at Modbus register 1 and are read by function
code 02. Actual value (Feedback) registers start at 1, are
read by Function Code 02, and are mapped to Binary
Outputs 1–66. Note that the value of each register is the
combined value of the current feedback input value and
the current command of that output. A bit value of 0
represents the feedback OFF and a 1 represents the
Feedback ON.
The feedback registers are listed in Table 38.
Reg. Contents Type Format
BO
Instance
1 BO1 Feedback R Bit 01
2 BO2 Feedback R Bit 02
3 BO3 Feedback R Bit 03
4 BO4 Feedback R Bit 04
5 BO5 Feedback R Bit 05
6 BO6 Feedback R Bit 06
7 BO7 Feedback R Bit 07
8 BO8 Feedback R Bit 08
9 BO9 Feedback R Bit 09
10 BO10 Feedback R Bit 10
11 BO11 Feedback R Bit 11
12 BO12 Feedback R Bit 12
13 BO13 Feedback R Bit 13
14 BO14 Feedback R Bit 14
15 BO15 Feedback R Bit 15
16 BO16 Feedback R Bit 16
17 BO17 Feedback R Bit 17
18 BO18 Feedback R Bit 18
19 BO19 Feedback R Bit 19
20 BO20 Feedback R Bit 20
21 BO21 Feedback R Bit 21
22 BO22 Feedback R Bit 22
23 BO23 Feedback R Bit 23
24 BO24 Feedback R Bit 24
25 BO25 Feedback R Bit 25
26 BO26 Feedback R Bit 26
27 BO27 Feedback R Bit 27
28 BO28 Feedback R Bit 28
29 BO29 Feedback R Bit 29
30 BO30 Feedback R Bit 30
31 BO31 Feedback R Bit 31
32 BO32 Feedback R Bit 32
33 BO33 Feedback R Bit 33
34 BO34 Feedback R Bit 34
35 BO35 Feedback R Bit 35
36 BO36 Feedback R Bit 36
37 BO37 Feedback R Bit 37
38 BO38 Feedback R Bit 38
39 BO39 Feedback R Bit 39
Reg. Contents Type Format
BO
Instance
40 BO40 Feedback R Bit 40
41 BO41 Feedback R Bit 41
42 BO42 Feedback R Bit 42
43 BO43 Feedback R Bit 43
44 BO44 Feedback R Bit 44
45 BO45 Feedback R Bit 45
46 BO46 Feedback R Bit 46
47 BO47 Feedback R Bit 47
48 BO48 Feedback R Bit 48
49 BO49 Feedback R Bit 49
50 BO50 Feedback R Bit 50
51 BO51 Feedback R Bit 51
52 BO52 Feedback R Bit 52
53 BO53 Feedback R Bit 53
54 BO54 Feedback R Bit 54
55 BO55 Feedback R Bit 55
56 BO56 Feedback R Bit 56
57 BO57 Feedback R Bit 57
58 BO58 Feedback R Bit 58
59 BO59 Feedback R Bit 59
60 BO60 Feedback R Bit 60
61 BO61 Feedback R Bit 61
62 BO62 Feedback R Bit 62
63 BO63 Feedback R Bit 63
64 BO64 Feedback R Bit 64
65 BO65 Feedback R Bit 65
66 BO66 Feedback R Bit 66
Table 38. List of feedback registers.
Sample Packets
Table 39 is an example of a request to read for output
Feedback instances 1–19 (Function 2, BO 1–19 in map).
Note that the feedback status of inputs 8–1 is shown as the
byte value 0xAC or binary 1010 1100. Input 8 is the MSB of
this byte and input 1 is the LSB. The feedback status input
19–17 is shown as the byte value 0x06 or binary 0000 0110.
Input 19 is the third bit position from the left and input 17
is the LSB.
Request Response
Field Name Hex Field Name Hex
Device Address 01 Device Address 01
Function 02 Function 0F
Register Address Hi 00 Byte Count 03
Register Address Lo 00 Input Status 8–1 AC
Quantity of Inputs Hi 00 Input Status 16–9 DB
Quantity of Inputs Lo 0A Input Status 19–17 06
Packet CRC Hi Packet CRC Hi
Packet CRC Lo Packet CRC Lo
Table 39. Sample packets for output feedback instances 1–19