cardComState

cardComState — sets or queries the card bus communication state.

Synopsis

(cardComState)
(cardComState card_id)
(cardComState card_id com_state)
  

Parameters

card_id

The target card ID (0..3). If no card ID is specified, the query form of the command is repeated for all initialized cards.

com_state

0 to stop bus communication, 1 to (re)start bus communication

Returns

In response to a query or successful setting of a card:

(cardComState card_id com_state)

Otherwise, the following error message:

(error "cardComState DR_ERR_CARD_INVALID (time) invalid card: card_id")

Description

This command sets or queries the card bus communication state. It can be used to start and stop fieldbus communication during runtime.

Example

(cardComState 0)