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Rs-232 communciations with a plc-5, Rs-232 communications with a plc-5 – Rockwell Automation 2707-M232P3_M485P3 DTAM Micro Operator Interface Module User Manual

Page 69

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Connections and Setup

Chapter 7
Communication

7–7

The DTAM Micro and PLC-5 must be set as follows for communications
to occur:

RS-232C

DTAM Micro

PLC-5

Cable (Catalog No. 2707-NC3)

Channel 0

RS-232 Version

DTAM Micro

The DTAM Micro must have an application with a PLC5-DF1 operating
system installed. The Baud Rate and Parity of the DTAM Micro and PLC-5
must be set the same.

PLC-5

Channel 0 must be set as follows (NA = Not Applicable):

Parameter

Setting

Comments

Channel Configuration Option

System DF1 Pt-Pt

Required for proper operation.

Diagnostic File

3-999

Must be a unique integer file number.

Remote Mode change

Disabled

Required for proper operation.

Mode Atten. Character

NA

Not used with Remote Mode disabled.

System Mode Character

NA

Not used with Remote Mode disabled.

User Mode Character

NA

Not used with Remote Mode disabled.

Baud Rate

See Comments

DTAM Micro must be set the same.

Stop Bits

1

Required for proper operation.

Parity

See Comments

DTAM Micro must be set the same.

Control Line

No Handshaking

Required unless communication cable
loops back control signals.

Duplicate Detect

NA

User definable per system requirements.

ACK Timeout

NA

User definable per system requirements.

Message Timeout

NA

User definable per system requirements.

Error Detect

CRC

Required for proper operation.

NAK Receive

NA

User definable per system requirements.

DF1 ENQs

NA

User definable per system requirements.

RS-232 Communications
with a PLC-5