- 33 -
9. CN2: TB/PC connector
9. 1 How to use
This connector is for setting the controller (LEC) which is connected to the gateway unit by the teaching
box or the set software.
When the communication switch (CN2SW) is turned off, the communication from Profibus DP to the
controller is disconnected, and the signal line of CN2 and CN1 is connected. From now on, the setting of
each controller is possible.
The following is the setting procedure of the controller (LEC) when the teaching box or PC setting
software us connected to the gateway unit.
【
Procedure to start setting
】
(1) Connect the teaching box or PC to CN2 of gateway unit.
(2) Turn off the communication switch (CN2SW).
(3) Reset signal is sent to all controllers (LEC) which are connected to the gateway unit, and the
communication from Profibus to the controller (LEC) is disconnected. Reset signal stops all actuators.
(4) Communication from the teaching box or PC becomes available.
【
Procedure to finish setting
】
(1) Finish the PC setting software.
(2) Turn on the communication switch (CN2SW).
(In case of the teaching box, power supply is turned off at this point)
(3) Communication starts after the reset signal is sent from the gateway unit to the controller (LEC).
Reset signal stops all the actuators immediately after communication starts.
(4) Remove the teaching box or PC from the CN2 of gateway unit.
Caution
Do not start the setting software during data link (CN2SW turn on).
Otherwise, communication error (data link error) is generated with the gateway unit.
Use the teaching box and the setting software after
f
inishing startup process of the gateway
unit (After ALM lamp green blinks).
(CN2SW turn off etc.)
The gateway unit communicates with controller (LEC) as startup processing immediately
after turning on of the power supply.
At this time, if the teaching box or the setting software communicate to controller (LEC),
communication error is generated.