Table 46-1 Modbus Variable Lists
47
data type attribute data address description
10001 Fill valve status 0:off 1:on
10002 Drain valve status 0:off 1:on
10003 contactor 1 status 0:off 1:on
10004 contactor 2 status 0:off 1:on
10005 contactor 3 status 0:off 1:on
10006 contactor 4 status 0:off 1:on
10008 Network control 0:Local 1:Remote
1 comm type 0:485 1:PSP
2 Sensor select 0:Humidistat 1:RH sensor
3 High limit sensor select 0:not use 1:use
4 Outside temperature 0:not use 1:use
5 Network enable 0:disable 1:enable
6 Modulating Fill enable 0:enable 1:disable
30001 Desired RH
30002 Output
30003 Water level 0:low 1:normal 2:high 3:exception
Run status 0:Idle 1:Gen 10:frequent Draining 4:bed dring
5:Failure 6:Drain 7:heat 9:Fill
30010 Drain Freq (Minutes)
30012 Idle Time (Minutes)
30015 Outside temperature
Failure 1:Over temperature 2:High humidity/sail switch circuit is
open 3:Illegal level switch state 4:Unit have reached 100% of
bed life 5:Fill time out to low level 6:Water level dropped below
level during normal run 7:Fill time out from low to high level
8:Water level above high level time out 9:Water level has not
dropped below low level during an emptydrain 10:End of bed
dring
30020 Contactor Power 0:1000W 1:3000 2:5000W 3:6650W 4:8000W
function 1,read only : function 5,15 write
MODBUS POLL: READ COILS
For modbus function number
function 2 , read only MODBUS POLL:
READ DISCRETE INPUT
function4 , read only MODBUS POLL:
READ INPUT REGISTERS
40001 Language Select
40002 Set RH(Set Desired RH)
40003 High set point
40004 Outside temperature high set point
40005 Outside temperature low set point
40006 Outside RH low set point
40007
Run mode 1:Steam Gen 2:Manual Fill 3:Manual Drain 4:Unit stop
Bed life 0:500Hours 1:750Hours 2:1000Hours 3:1250Hours
4:1500Hours 5:1750Hours 6:2000Hours 7:2250Hours
8:2500Hours 9:3000Hours 10:No bed
Drain Freq 0:6Hours 1:12Hours 2:24Hours 3:48Hours
4:96Hours
40011 Drain time 0:1Minutes 1:5Minutes 2:10Minutes
40012 Signal type 0:0-10V 1:0-5V 2:1.9-3.9V 3:4-20mA
40013 PID_DIV
40014 PID_PB
40015 PID_SI
40016 PID_DG
40017 Modulating Fill Freq
40018 Modulating Fill time
40019 Water temperature compensate
40020 Heat temperature compensate
40021 First run
40022 Idle time
40023 Drain time 0:1Minutes 1:5Minutes 2:10Minutes
40024 Bed life
function 6 , for debug only
function3 read only,function 6,16 write
MODBUS POLL: READ HOLDING
REGISTERS
