![DriSteem Vapor-logic 4 Installation And Operation Manual Download Page 73](http://html1.mh-extra.com/html/dristeem/vapor-logic-4/vapor-logic-4_installation-and-operation-manual_2531539073.webp)
%3*45&&. 7BQPSMPHJD *OTUBMMBUJPO BOE 0QFSBUJPO .BOVBM t 1BHF
Operation
M o d b u s , B A C n e t , L o n Ta l k
i n t e r o p e r a b i l i t y
Table 69-1:
Interoperability variable and object names (continued)
Variable name and
BACnet object name
Read Only
(RO) or
Read Write
(RW)
Modbus
register
number*
BACnet
Object
Type and
Instance
LonTalk variable
names**
Description
Units
Range
I-P
units
SI units
I-P units
SI units
Messages
Message_replace_contactors
RW
DV-38
BV-38
nvoMsgReplCntctr
See Table 43-1,
Diagnostics menu
--
--
--
--
Message_service_unit
RW
DV-39
BV-39
nvoMsgSrviceUnit
Message_drain_pending
RW
DV-40
BV-40
nvoMsgDrainPend
Message_no_duct_airflow
RW
DV-41
BV-41
nvoMsgNoDuctAir
Message_interlock_open
RW
DV-42
BV-42
nvoMsgIlockOpen
Message_freeze_prevent_
draining
RW
DV-43
BV-43
nvoMsgFreezDrain
Message_end-of-season_
active
RW
DV-44
BV-44
nvoMsgEOSactive
Message_temp_comp_on
RW
DV-45
BV-45
nvoMsgTempCompOn
Message_clean_probes
RW
DV-46
BV-46
nvoMsgCleanProbe
Message_duct_HL_trip
RW
DV-47
BV-47
nvoMsgDuctHLtrip
Message_duct_HL_span
RW
DV-48
BV-48
nvoMsgDuctHLspan
Message_insufficient_water
RW
DV-49
BV-49
nvoMsgH2Ocutout
Message_boiling_temp_
calibrated
RW
DV-50
BV-50
nvoMsgBoilTempCl
Notes:
1. Modbus Input Registers (IR1-IR11) 16 bit read only
Modbus Holding Registers (HR1-HR10) 16 bit read/write
Modbus Discrete Input Registers (DI1-DI9) single bit read only
Modbus Coil Registers (DV1-DV50) single bit read/write
2.
nvi LonTalk SNVT’s are write-only; nvo are read-only