• Link Response Time (RESP) – selects restricted or unrestricted RIO link

response time.

• Last Chassis/PLC-3 Backup (LAST CHA) – When the 1747-ASB module is

used with a PLC-2 or PLC-5, this switch indicates to the scanner that the

1747-ASB module is the last adapter mapped into the 1747-ASB module’s

highest logical rack. When using a PLC-3 processor, the switch determines

whether the 1747-ASB module supports the PLC-3 backup function.

• Addressing Mode (ADDR MODE) – determines the 1747-ASB module’s

remote chassis and remote expansion chassis addressing mode. 2-slot,

1-slot, and 1/2-slot are available.

• Specialty I/O Mode (SP MODE) – determines whether the 1747-ASB

module discretely maps or block transfer maps specialty I/O modules in its

remote chassis and remote expansion chassis.

• I/O Module Keying (KEY) – determines if the 1747-ASB module saves its

current I/O module and DIP switch configuration to its non-volatile memory,

or if the 1747-ASB module compares the current I/O module and DIP switch

configuration to the one saved in its non-volatile memory.