HONEYWELL MODEL 700/800 SIGNAL PROCESSOR AND VIEWING HEAD
17
66-2069EP—04
Fig. 8. Typical Communication Wiring and Recommended Addressing.
NOTE: Refer to Fig. 9 for converter to RJ11 wiring details.
40084
ERRORCODE
Error code (read/write)
NOTE: writing a non zero number to this register is not allowed
-
-
40085
BAUD
Baud rate setting (bits/second). Only affects RS-485
communication, not IRDA. (read, write)
96=9600 (default), 192=19200.
The SP and the master device must have the same baud
settings.
96
192
40086
PARITY
Parity setting. Only affects RS-485 communication, not IRDA.
(read/write)
0= none (default), 1=odd
0
1
40087
ADDRESS
Modbus address used by RS-485 and IRDA (read/write).
Each device must have a unique address.
0
247
40089
PROTOCOL
Protocol (read/write)
0=Honeywell protocol, 1=Modbus protocol
0
1
Table 4. MODBUS registers map. (Continued)
Register
Name
Description
Minimum
Maximum
BNR 1
11
BOILER
1
ADDRESS
M34457
NOTES: A CONVERTER MAY BE NECESSARY FOR COMMUNICATION WITH THE MODBUS MASTER CONTROL.
MODBUS
MASTER CONTROL
BNR 1
31
BNR 2
12
BNR 2
32
BNR 3
13
BNR 3
33
BNR 4
14
BNR 4
34
BNR 5
15
BNR 6
16
ADDRESS
BOILER 3
USE SHIELDED CABLE FOR COMMUNICATION WIRING.
DRAWING IS FOR GENERAL REFERENCE ONLY.
FOR RS422 COMMUNICATION WITH THE 700ACSP OR 700DCSP, AN RJ11 CONNECTOR WITH 5 WIRES
FROM EACH SIGNAL PROCESSOR WILL BE REQUIRED (RDA-, RDB+, TDA-, TDB+, GND), FOLLOWING
POLARITY FROM EACH SIGNAL PROCESSOR.
