4
Modbus addresses
4.5
Commands
Address
0x004D
0x004E
0x004F
0x0050
22 | nVent.com
Data type/
bit number
Access
INT
W/O
Bit 0
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
Bit 8
Bit 9
Bit 10
Bit 11
INT
W/O
Bit 0
Bit 1
Bit 3
Bit 5
INT
W/O
Bit 9
Bit 10
Bit 11
INT
R/W
Bit 0
Bit 1
Signal designation
Binary functions CONTROLLER
Self-optimization start (=0x0001)
Self-optimization abort (=0x0002)
Manual operation (= 0x0004)
Automatic operation (= 0x0008)
Controller off (= 0x0010)
Manual mode inhibit (= 0x0020)
Ramp stop (= 0x0040)
Ramp abort (= 0x0080)
Ramp restart (= 0x0100)
Timer start (= 0x0200)
Timer abort (= 0x0400)
Timer stop (= 0x0800)
Binary functions OPERATION
Keyboard inhibit (= 0x0001)
Configuration and parameter level inhibit
(= 0x0002)
Display OFF (= 0x0008)
Text display (= 0x0020)
Binary functions TIMER
Timer start (= 0x0200)
Timer abort (= 0x0400)
Timer stop (= 0x0800)
Set point value toggling
Set point value 1 (= 0x0001)
Set point value 2 (= 0x0002)