Honeywell UMC800 Summary of communication link connections to controller, Configuration connector

Mounting and Wiring

Wiring Communication Links

Table 10 Summary of communication link connections to controller

Communication

Link to . . .

PC or laptop (via Null Modem cable or via modem)

Operator interface

Modbus Link (optional communications board)

Modbus Link (optional communications board)

Link Type

RS 232

RS 422

RS 485 (Half Duplex)

RS 485

(Half

Duplex)

From Controller

Port

CONFIGURATION

(9-pin “D” connector)

DISPLAY

(15-pin “D” connector)

COMM A

(4-wire + shield or 2-wire shielded with external jumpers

COMM B

(4-wire + shield or 2-wire shielded with external jumpers

Connect	To Port
Cable
Up to 50 ft	Serial port of PC.
cable lengths
(Supplied by
user)

10 ft or 50 ft	Terminal connector
cable lengths	of operator
available.	interface.
Up to 2000 ft	Modbus
cable lengths	communications
(Supplied by	and PC host.
user)
Up to 2000 ft	Modbus
cable lengths	communications
(Supplied by	and slave devices.-
user)

Reference Data

Null Modem cable, 9-pin Male/Female See Table 11.

Modem: See Remote Access (page 44)

See Table 12.

See Figure 26.

See Figure 26.

CONFIGURATION connector

The Configuration connector accommodates a 9-pin D-type Null Modem cable connection to the serial RS-232 input of a PC or laptop computer. Table 11 describes the pinouts for the connector. See Figure 23 for the pin numbering. If you need to construct the cable, Table 12 shows the make up of the cable.

Table 11 Configuration connector pinouts

Configuration Connector Pinouts

(For Null Modem Cable)

Signal Name

DCD

RXD

TXD

DTR

GND

DSR

RTS

CTS

RI

Terminal No.

1

2

3

4

5

6

7

8

9

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