Can I detect the CTS signal on port 3 of a PCD3.M5340 (in RS422 mode)?

FAQ #101170

Yes, this is possible with firmware version 1.10.15 and later.

 

With firmware version 1.10.15 and later, it is possible reading the CTS signal from port 3 in case RS422 is used on this port. The CTS signal can be read by executing the SICL instruction (it is also possible if the port is assigned and if the port is not assigned).
Additionally, it is possible writing the RTS and the COM signal using the SOCL instruction (again, only if RS422 is used).

Remark
Please note that the CTS does not exist on RS485 and therefore it can not be read, either.

 

Port

Type

Mode

Assigned

(SASI)

SICL

SOCL

RS-232

RS-422

RS-485

MC 0

MC 1

MC 2

MC 4/5

 

0
CTS

1

DSR

2

DCD

0

RTS

1

DTR

2

COM

# 0

image

-

-

image

image

-

image

No

image

image

image

-

-

-

yes

image

image

image

image

image

-

# 1

image

image

image

image

image

image

image

No

image

image

image

-

-

-

yes

image

image

image

image

image

image

# 2

-

-

image

 

-

-

-

image

No

-

-

-

-

-

-

yes

-

-

-

-

-

-

# 3

-

image

*

image

image

*

image

*

-

image

No

image

*

-

-

-

-

-

yes

image

*

-

-

image

*

-

image

*

# 1xx

image

image

image

image

image

image

image

No

image

image

image

-

-

-

yes

image

image

image

image

image

image


*) HW dependant (only on PCD3.M5340)

 

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PCD3 / Mxxx

Last update: 26.05.2015 06:01

First release: 24.03.2009 17:04

Views: 881

The requested software / document is no longer marketed by Saia-Burgess Controls AG and without technical support. It is an older software version which can be operated only on certain now no longer commercially available products.

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