GE ML1200 instruction manual Memory Mapping, Modbus Memory Map, Modbus memory map Sheet 1

MODBUS PROTOCOL CHAPTER 18: MODBUS PROTOCOL

18.2Memory Mapping

18.2.1 Modbus Memory Map

The Modbus memory map is shown below. Refer to Format Codes on page 18–37for details on the items in the format column.

Table 18–1: Modbus memory map (Sheet 1 of 33)

Address	Description	Range	Step	Format	Default
0000	System name (12 registers)	-	-	String	Varies
000C	System contact (12 registers)	-	-	String	multilin.tech
					@ge.com
0018	System location (12 registers)	-	-	String	Markham, Ontario
0024	Software version (6 registers)	-	-	String	Varies
002A	IP address (byte 0)	1 to 254	1	F1	0
002B	IP address (byte 1)	1 to 254	1	F1	0
002C	IP address (byte 2)	1 to 254	1	F1	0
002D	IP address (byte 3)	1 to 254	1	F1	0
002E	Netmask (byte 0)	1 to 254	1	F1	0
002F	Netmask (byte 1)	1 to 254	1	F1	0
0030	Netmask (byte 2)	1 to 254	1	F1	0
0031	Netmask (byte 3)	1 to 254	1	F1	0
0032	Gateway (byte 0)	1 to 254	1	F1	0
0033	Gateway (byte 1)	1 to 254	1	F1	0
0034	Gateway (byte 2)	1 to 254	1	F1	0
0035	Gateway (byte 3)	1 to 254	1	F1	0
0036	MAC address (3 registers)	-	-	String	Varies
0039	Order code (16 registers)	-	-	String	Varies
0049	Power alarm 1	0 to 1	1	F2	0
004A	Power alarm 2	0 to 1	1	F2	0
004B	Stp State	0 to 1	1	F3	0
004C	Number of ports	1 to 32	1	F1	Varies
004E	Port present map	-	-	Bitmap	Varies
0050	Port link map	-	-	Bitmap	0
0052	Port stp state map	-	-	Bitmap	0
0054	Port activity map	-	-	Bitmap	0
0056	Port 1 type	0 to 6	1	F4	Varies
0057	Port 2 type	0 to 6	1	F4	Varies
0058	Port 3 type	0 to 6	1	F4	Varies
0059	Port 4 type	0 to 6	1	F4	Varies
005A	Port 5 type	0 to 6	1	F4	Varies
005B	Port 6 type	0 to 6	1	F4	Varies
005C	Port 7 type	0 to 6	1	F4	Varies
005D	Port 8 type	0 to 6	1	F4	Varies
005E	Port 9 type	0 to 6	1	F4	Varies
005F	Port 10 type	0 to 6	1	F4	Varies
0060	Port 11 type	0 to 6	1	F4	Varies
0061	Port 12 type	0 to 6	1	F4	Varies

18–4 MULTILINK ML1200 MANAGED FIELD SWITCH – INSTRUCTION MANUAL