Table 46-1 Modbus Variable Lists
47
data type attribute data address description
10001Fill valve status 0:of f 1:on
10002Drain valve status 0:of f 1:on
10003contactor 1 status 0:off 1:on
10004contactor 2 status 0:off 1:on
10005contactor 3 status 0:off 1:on
10006contactor 4 status 0:off 1:on
10008Network control 0:Loc al 1:Remote
1comm type 0:485 1:PSP
2Sensor select 0:Hum idistat 1:RH sensor
3High limit s ensor select 0:not use 1:use
4Outside tem perature 0:not use 1:use
5Network enable 0:disable 1:enable
6Modulating Fill enable 0:enable 1:disable
30001Desired RH
30002Output
30003W ater level 0:low 1:normal 2:high 3:exception
30004
Run status 0:Idle 1:Gen 10:frequent Draining 4:bed dring
5:Failure 6:Drain 7:heat 9:Fill
30005Bed life (Hours)
30006Bed life (Minutes)
30007Run Time (Hours)
30008Run Time (Minutes)
30009Drain Freq (Hours)
30010Drain Freq (Minutes)
30011Idle Time (Hours)
30012Idle Time (Minutes)
30013RH value
30014Duct value
30015Outside temperature
30016Water temperature
30017Heat temperature
30018
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
30019Contactor number
30020Contactor 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
bit
read only
read write
bit
read only
16 bit
40001Language Select
40002Set RH(Set Desired RH)
40003High set point
40004Outside tem perature high set point
40005Outside tem perature low set point
40006Outside RH low set point
40007
Run mode 1:Steam Gen 2:Manual Fill 3:Manual Drain 4:Unit stop
40008AQUASTAT
40009
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
40010
Drain Freq 0:6Hours 1:12Hours 2:24Hours 3:48Hours
4:96Hours
40011Drain time 0:1Minutes 1:5Minutes 2:10Minutes
40012Signal type 0:0-10V 1:0-5V 2:1.9-3.9V 3:4-20mA
40013PID_DIV
40014PID_PB
40015PID_SI
40016PID_DG
40017Modulating Fill Freq
40018Modulating Fill time
40019W ater temperature compensate
40020Heat temperatur e compensate
40021First run
40022Idle time
40023Drain time 0:1Minutes 1:5Minutes 2:10Minutes
40024Bed life
function 6 , for debug only
function3 read only,function 6,16 write
MODBUS POLL: READ HOLDING
REGISTERS
read write
16bit