Rockwell Automation 2706-LV2P_LV2R_LV4P_LV4R DL40 PLUS USER MANUAL - Manual (Page 149)

DIP Switch Settings 10–5
Publication 2706-6.1
Keyboard Type (Switch #6)
If the Keyboard Type DIP switch is set to ON, then an IBM-XT or
compatible is the only type of keyboard that can be used. If the DIP
switch is set to OFF, then the IBM-AT or compatible is the only type
of keyboard that can be used.
Handshake Enable (Switch #7)
•
With Block Transfer Enable Switch OFF. If the Handshake
Enabled DIP switch is set to ON this allows the use of the
handshake bit. Note: If Handshake (switch #7) is enabled, the
Handshake rung must be programmed in the ladder logic. See
page 8–16.
•
With Block Transfer Enable Switch ON.
– Handshake Switch ON – DL40 Plus will indicate ERROR if
no block transfer reads are requested for one minute.
– Handshake Switch OFF – DL40 Plus will not generate error
message if no block transfer reads are requested. Messages
will continue to run.
Last State (Switch #8)
If set to ON (Last State enabled) and the DL40 loses communication,
the DL40 Plus will alternate the error message with the current
display. The DL40 Plus will still run messages triggered via the
keyboard or the RS-485 port.
If set to OFF (Last State disabled) and the DL40 loses
communication, the DL40 Plus clears the display and displays the
error message.
Select Button Enable (Switch #9)
When set to ON, then the [SELECT] button on the faceplate of the
DL40 Plus is enabled. In the OFF position, the [SELECT] button is
disabled.
No PLC Communications (Switch #10)
When set to ON, the No PLC Communication message is disabled.
In the OFF position, then the No PLC Communication message is
enabled.