Rockwell Automation 1771-KA2 Communication Adapter Module - Manual (Page 28)

Module Installation
Chapter 3
3-4
RECEIVE PRIVILEGED WRITE SWITCH
Switch 4 determines whether the module can execute received privileged
write commands. These commands can be issued only from a computer
connected through a communication controller module (cat. no.
1771–KE/KF).
These commands give the computer the capability to alter the user
program memory of the station processor. Set this switch as follows:
ON – Enables a 1771–KA2 to execute received privileged write
commands
OFF – Disables the 1771–KA2 from executing received privileged
write commands.
SEND UNPROTECTED COMMANDS SWITCH
Switch 5 determines whether the module can send unprotected write or bit
write commands to another station. Set this switch as follows:
ON – Enables the module to send unprotected write and bit write
commands
OFF – Disables the module from sending unprotected write and bit
write commands
This switch does not prevent unprotected read commands from being sent
by a communication adapter module.
FIRST/SECOND MODULE
Use switch 6 for first/second module selection. Set switch:
ON – Use this setting when connected directly to any compatible
processor except PLC–2 (1772–LR).
OFF – Use this setting when the KA2 module is connected to a
PLC–2 (1772–LR), a 1771–KG series B module, or another KA2
module.
Station No. Switch Group
You must designate a unique station number for each communication
adapter module on a Data Highway. This designation is made by the
programmer and switch–selected on the station number switch group of
the module.