Connections and Wiring
19
NI-2100/3100/4100 - Hardware Reference Guide
Connections and Wiring
Setting the Configuration DIP Switch (for the Program Port)
Prior to installing the Controller, use the Configuration DIP switch to set the baud rate used by the Program port for
communication. The Configuration DIP switch is located on the front of the Integrated Controllers.
Baud Rate Settings
Before programming the on-board Master, make sure the baud rate you set matches the communication parameters set on both
your PC’s COM port and those set through your NetLinx Studio.
By default, the baud rate is set to
38,400
(bps).
NOTE:
Note the orientation of the Configuration DIP Switch and the ON position label. DIP switches 2, 3, and 4 must remain in the
OFF position at all times.
Program Run Disable (PRD) Mode
You can also use the Program port’s Configuration DIP switch to set the on-board Master to Program Run Disable (PRD) mode
according to the settings listed in the table below.
PRD mode prevents the NetLinx program stored in the on-board Master from running when you power up the Integrated Controller.
You should only use PRD mode when you suspect the resident NetLinx program is causing inadvertent communication and/or
control problems. If necessary, place the on-board Master in PRD mode and use the NetLinx Studio program to resolve the
communication and/or control problems with the resident NetLinx program. Then download the new NetLinx program and try
again.
NOTE:
Consider equating PRD Mode to a PC’s SAFE Mode setting. With PRD mode, you can continue to power a unit, update the
firmware, and download a new program while circumventing any problems with a currently downloaded program. You must power
cycle the unit after activating/deactivating PRD mode on Program Port DIP switch #1.
Working with the Configuration DIP Switch
1.
Disconnect the power supply from the 2-pin PWR (green) connector on the rear of the device.
2.
Set DIP switch positions according to the information listed in the
Baud Rate Settings on the Configuration DIP Switch
tables.
3.
Reconnect the 12 VDC-compliant power supply to the 2-pin 3.5 mm mini-Phoenix PWR connector.
Setting the CardFrame DIP Switch (NI-4100 only)
Setting the NetLinx Control Card Addresses (NI-4100 Only)
section on page 14 for a detailed explanation on this
process.
Baud Rate Settings on the Configuration DIP Switch
Baud Rate
Position 5
Position 6
Position 7
Position 8
9600 bps
OFF
ON
OFF
ON
38,400 bps (
default
)
OFF
ON
ON
ON
57,600 bps
ON
OFF
OFF
OFF
115,200 bps
ON
ON
ON
ON
PRD Mode Settings
PRD Mode
Position 1
Normal mode (default) OFF
PRD Mode
ON
