Appendix, 2. serial communications – GE Industrial Solutions ASTAT-IBP Plus User Manual

Page 29

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6. Appendix

The following table indicates the communications setting used by ASTAT-IBP Plus to perform data communication via its serial port

Name

Setting

Description

Baud Rate

9600 bps

Bits per second transmission rate

Parity

None

Data error checking method

Data Bits

8

Number of data bits in each transmission

Start Bits

1

Number of bits to indicate beginning of transmission

Stop Bits

2

Number of bits to indicate ending of transmission

Data

ASCII

Communications protocol used

Handshaking

None

No need to request to send or clear to send

Computer

2

TD

Pin

RS232 cable

6-2

6-2. Serial communications

ASTAT-IBP Plus is able to send and receive data through a serial RS232 port. Within this port ASTAT-IBP Plus communicates with a host PC.

For RS232 ASCII Communications, parameter "XP" must be set to 0.

6-2-1. RS232 port, wiring and communications settings

RS232 is an operating standard of communication only in terms of electrical characteristics (voltage, timing, etc.) while the
communication procedures are defined by ASCII.
The maximum allowed RS232 cable length is 3 meters. ASTAT-IBP Plus uses a connector with only 3 pins: TD, RD, SG.

Astat Terminal

Name

TD

Transmit Data

RD

Receive Data

SG

Signal Common

RS232 connector

3

RD ASTAT-IBP Plus

D-SUB9

5

SG

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