Serial communications, Figure 3-4. serial communications – Rice Lake BCi Belt Scale - Installation and Operation Manual Version 2.03 User Manual

Page 36

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30

Installation and Operation Manual

Reconnect power to the integrator.

1

3

5

14

17

16

12

9

8

7

10

11

18

15

4

2

6

13

Torque backplate screws

to 15 in-lb (1.7 N-m)

Figure 3-4. Backplate Torque

The integrator automatically recognizes all installed option cards when the unit is powered on. No
hardware-specific configuration is required to identify the newly-installed card to the system.

Serial Communications

The four communications ports on the CPU board support full duplex RS-232, 20 mA output, or RS-485
communications at up to 115200 bps.

To attach serial communications cables, route the cable through the cord grip and ground the shield wire as
described on page 26. Remove the serial connector from the CPU board and wire to the connector. Once cables
are attached, plug the connector into the header on the board. Use cable ties to secure serial cables to the inside of
the enclosure.

The serial port pin assignment table shows the pin assignments for Ports 1, 3, and 4. Port 2 provides DIN-8 and
DB-9 connectors for remote keyboard attachment of PS/2-type personal computer keyboards (see below). The
DB-9 connector pin assignments for Port 2 are shown in the DB-9 Connector table below.

Table 3-3. Serial Port Pin Assignments

Connector

Pin

Signal

Port

J11

1

GND

1

2

RS-232 RxD

3

RS-232 TxD

J9

1

GND / –20mA OUT

3

2

RS-232 RxD

3

RS-232 TxD

4

+20mA OUT

J10

1

GND / –20mA OUT

4

2

RS-232 RxD

3

RS-232 TxD

4

+20mA OUT

5

RS-485 A

6

RS-485 B

Serial ports are configured using the SERIAL menu.

An optional dual-channel serial communications expansion card, PN 67604, is also available. Each serial
expansion card provides two additional serial ports, including one port that supports RS-485 communications.

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