PC3000 Complete Installation guide iss 12 - Elektro-Trading

PC3000 - Installation Guide
Local Controller Plus Module
It is not possible to cover all possible uses of the communication links to and from an
LCM-Plus but the following table shows how the links would be set for some of the
typical uses. In the table link LK*1 refers to LKA1 for channel A, LKB1 for channel
B and LKC1 for channel C etc.
Requirement Links Comments
RS232 not applicable The links are ignored
Point to point for RS232 connection
RS485 LK*1 forward position Receiver terminated
Point to point LK*2 forward position Tx and Rx permanently enabled
4-Wire LK*3 & 4 not fitted Tx and Rx separate
LKA5-8 as required Optional swap if not
(port A only) in cable (Note 1)
RS485 LK*1 forward position Receiver terminated
Point to point LK*2 rear position Tx disabled when not transmitting,
2-wire Rx disabled when transmitting
(Suitable for half LK*3 & 4 fitted Tx and Rx shorted
duplex protocols only) LKA5-8 horizontal
(port A only)
Swap not required
RS485 LK*1 as required Optional receiver termination (Note 2)
Master LK*2 forward position Tx and Rx permanently enabled
4-wire LK*3 & 4 not fitted Tx and Rx separate
LKA5-8 vertical
(port A only)
Swapped (Note 1)
RS485 LK*1 as required Optional receiver termination (Note 2)
Master LK*2 rear position Tx disabled when not transmitting,
2-wire Rx disabled when transmitting
(Suitable for half LK*3 & 4 fitted Tx and Rx shorted
duplex protocols LKA5-8 horizontal Not swapped
only) (port A only)
RS485 LK*1 as required Optional receiver termination (Note 2)
Slave LK*2 not fitted Tx disable when not transmitting,
4-wire Rx permanently enabled
LK*3 & 4 not fitted Tx and Rx separate
LKA5-8 horizontal
(port A only)
Not swapped
RS485 LK*1 as required Optional receiver termination (Note 2)
Slave LK*2 rear position Tx disabled when not transmitting,
2-wire Rx disabled when transmitting
(Suitable for half LK*3 & 4 fitted Tx and Rx shorted
duplex protocols only) LKA5-8 horizontal
(port A only)
Not swapped
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