Modbus, Johnson n2, Lonworks – Carrier 50HCQ04---12 User Manual
Page 11
11
SW3 Protocol Selection
PROTOCOL
DS8
DS7
DS6
DS5
DS4
DS3
DS2
DS1
BACnet MS/TP
(Master)
Unused
OFF
OFF
OFF
ON
OFF
Select Baud Select Baud
Modbus
(Slave)
Unused
OFF
OFF
ON
ON
OFF
Select Baud Select Baud
N2
(Slave)
Unused
OFF
OFF
OFF
ON
ON
OFF
OFF
LonWorks
Unused
ON
ON
OFF
ON
OFF
OFF
ON
NOTE:
DS = Dip Switch
BACnet MS/TP SW3 example shown
Baud Rate Selections
BAUD RATE
DS2
DS1
9600
OFF
OFF
19,200
ON
OFF
38,400
OFF
ON
76,800
ON
ON
C07166
Fig. 11 -- RTU--OPEN SW3 Dip Switch Settings
C10815
Fig. 12 -- RTU--OPEN Address Switches
C10816
Fig. 13 -- Network Wiring
Modbus
The RTU--OPEN module can speak the Modicon Modbus
RTU Protocol as described in the Modicon Modbus
Protocol Reference Guide, PI----MBUS----300 Rev. J. The
speed of a Modbus network can range from 9600 to 76.8K
baud. Physical Addresses can be set from 01 to 99.
Johnson N2
N2 is not a standard protocol, but one that was created by
Johnson Controls, Inc. that has been made open and
available to the public. The speed of N2 network is
limited to only 9600 baud. Physical Addresses can be set
from 01 to 99.
LonWorks
LonWorks is an open protocol that requires the use of
Echelon’s Neuron microprocessor to encode and decode
the LonWorks packets. In order to reduce the cost of
adding that hardware on every module, a separate
LonWorks Option Card (LON--OC) was designed to
connect to the RTU--OPEN.
This accessory card is needed for LonWorks and has to be
ordered and connected using the ribbon cable to plug J15.
The RTU--OPEN’s baud rate must be set to 38.4k to
communicate with the LON--OC. The address switches
(SW1 & SW2) are not used with LonWorks.
- 42S
- 30GT
- 48SS060
- 50ME
- 38AH024-034
- ZC
- 30GA
- COMFORTLINK 48A2
- 48HE003---006
- 33ZCSECTRM
- 19XRV
- MODU-PAC 50DF
- 17DA
- SINGLE PACKAGED ELECTRIC COOLING UNITS 50GS
- 48JZ (N) 024-060
- 30GX080-176
- 50DL
- 50GL-A
- NP034-074
- 40GXQ
- 30XA080-500
- 39E
- 40KMQ------301
- 38AE
- 48AW
- 38GXQ
- 48ES---A
- 48GL
- 48GH
- 40QA024-060
- TJF004
- 39LD
- 48DL
- 50EJ
- 17EX
- 50BA
- 50BB
- 50BB
- 50BJ
- 30H
- 48HJD005-007
- 50ZP
- 50DP016
- 50LJ008-014
- OMNIZONE 50XJ064-104
- 48SX024-048
- 38APS025-065
- 48TM028
- 38BA
- 50LJ
- 07D
- SYSTEM PILOT 33PILOT-01
- 50HG014-028
- 38AUZ
- 50SS018-060
- 50ZH024-060
- 38CKC036 Air
- 51FP
- ROOMTOP 50AH024-096
- WEATHERMAKER 48/50AJ
- 38AF
- 38AK024-044
- 5F
- 50DF034
- WEATHERMASTER 36TE
- 09DK054-084
- 50ZPA
- 48/50PD05
- 40QNC
- MOTORMASTER 48/50P2
- 51CV/GY
- 52F
- 52F
- 38GNA
- 38AKS013-024
- 48TC*D08
- 38AE016
- SEER 48ES
- 50TJ016-028
- MINIMUM LOAD CONTROL ACCESSORY 30XA080-500
- 48/50A020-060
- 48KLA
- 48KLA
- 50GS
- 40RU
- 40RU
- 50PG03-07
- Compressor and Condensing Unit
- PREMIERLINK 33CSPREMLK
- 48/50PG C03-14
- 38GS
- PC 111
- 48EL
- 48PM16---28
- 48VL-A
- 48XL
- 50CD/CH
- 48FK
- OMNIZONE 50XCA06-24
- 48KH
- 00EFN900003000A
- 48DH
- 48GS(N)-2SB
- T--298
- 38ED
- 38TXA
- 38SE
- Packaged Terminal s & Heat Pumps 52P
- WEATHERMAKER 48AJ
- 50AH
- 06D
- WEATHERMAKER ZONEKIT2ZCAR
- 51QC/QG
- 48TC**16
- 30HR
- 50HJ004
- 38CQ
- 38CQ
- P
- 52C
- 50TC
- MODULINE 37HS
- 50EE
- 50MH
- 30HH
- 38EB
- 38AKS
- 38TRA
- 38CKW
- 39L
- 38CKC
- 50DP
- 040-420
- 38HDR018-060
- 38AKS028-044
- 48VT(N)
- 38GP
- 48/50P030-100
- 51CM
- 52C
- 38AH044-084
- 06E
- 50SX
- 50VL---A
- LIGHT COMMERCIAL CONDENSING UNITS 38HDL018-060
- 50DP020
- 38EC
- 50XP
- 48HJ004-014
- 38JB
- REFRIGERANT R-410A
- 42 SERIES
- 42GW
- 48N
- 48SS018-060
- 48TJF008-012
- 48HDT
- 38TMA
- 38QH
- 40RMQ008-028
- 09BB
- 38GF
- T-326
- 30GX080-265
- MINIMUM LOAD CONTROL ACCESSORY 30RB060-390
- 38HDL018-060
- 49004DP109
- 324423-751
- WEATHERMASTER 48/50Z030-105
- 48TM016-028
- 38CKB
- 09DK054-094
- 48TF004-007
- 38EN
- 38HD
- 38CKC(Q)
- 09DC
- 38VH
- 39E/ER
- 48ES
- RTU OPEN 11-808-427-01
- 38AU
- 07E
- 38GK
- 5H
- 5H
- 19DG
- 50AH024-060
- 42VMC
- 42XQ_42XQA
- 50HJ015
- 19 Series
- 1995 Room Air
- 73Y