GE Industrial Solutions A Series Lighting Control Panelboards Modbus Register Map - Manual (Page 11)

A Series ® Lighting Controller Modbus Register Map
Fixed-Value (Device Object) Registers
5
Fixed-Value Registers
Fixed-value register addresses start at 10001 and are read
by Function Code 04. They are mapped to Device
properties. These properties are assigned constant values
at the time of manufacture and may be stored in the
onboard EEPROM rather than in the database.
The fixed-value (device object property) registers are
listed in Table 5.
All strings have an embedded length. The first two
registers of the string contain the length of the string; e.g.,
Product ID Reg10040 Hi contains the most-significant
byte and Reg10040 Lo contains the least-significant byte of
the string length. The first character starts at Reg10041
Hi, the second character in Reg10041 Lo, the third
character in Reg10042 Hi, and so forth.
Offset Modbus # reg Property Format Range Type
0 10001–10007 Firmware Version ASCII
Int (ASCII string)
12 chars max + 2 bytes string size
R
7 10008–10014 Hardware Revision ASCII
Int (ASCII string)
12 chars max + 2 bytes string size
R
14 10015–10021
Application software
version
ASCII
Int (ASCII string)
12 chars max
R
21 10022–10023 Latitude 1 Real ±90.0 R
23 10024–10025 Longitude 2 Real ±180.0 R
25 10026 UTC Enable Int 0 /1 R
26 10027 UTC Offset Int ±32767 R
27 10028 DST Enable Int 0/1 R
Last Reset Time/Date
28 10029 Hours/Minutes Word R
29 10030 Seconds/Hundreths sec Word R
30 10031 DayOfWeek/Day Word R
31 10032 Month/Year Word R
32 10033 Reset Count Word 1–65536 R
33 10034
Device Address
(Mac address)
Word 1–99 R
34 10035 Device Control Word See Reg 50035 NA
Current Time/Date
35 10036 Hours/Minutes Word R
36 10037 Seconds/Hundredths Sec Word R
37 10038 DayofWeek/Day Word R
38 10039 Month/Year Word R
39 10040–10046 Product ID ASCII
INT (ASCII string)
12 chars max + 2 bytes string size
R
1 Latitude: positive value is north, negative value is south.
2 Longitude: positive value is east, negative value is west.
Table 5. Types of fixed-value registers.
Date and time values are represented as follows:
• Week of day: 1–7, 255 (wildcard)
• Day: 1–31, 255 (wildcard)
• Month: 1–12, 255 (wildcard)
• Year: 0–255
• Hour: 0–23, 255 (wildcard)
• Minutes: 0–59, 255 (wildcard)
• Seconds: 0–59, 255 (wildcard)
• Hundredths of seconds: 0–99, 255 (wildcard)
Sample Packets
The following are examples of packets generated by
requests for specific properties.
Device Product ID
Table 6 shows the result of a request for device product ID:
Reg10040 to Reg10046 (Function 04, DEV1 in map).
The response is as follows:
Reg10040 – Product Id Length – 0x000A – 10 characters