Host link unit lk201

fons04

Member
Join Date
Nov 2007
Location
Quebec
Posts
69
Hi Guys,
I've a problem to connect my C200H CPU01 (host link unit lk201). I've a cable DB9 to DB25 wired like Omron Specs:
PC PLC
2------2
3------3
5------7
7-| |-4
8-| |-5

I've set dips switch like Omron sheet

I'm using CX-Programmer, I've entered my plc on it but when I'm trying to connect, the RCV led on the host link flash and it fail.
Thanks to help me
 
fons04,
have you tried the following -
1)Link Selector (at back of LK201 ) in ON position
2)SW4 (Command Level) in position 2
3)Baud rate in your software same as per SW3 of LK201
4)Match LK201 unit number with that in software (default - 0)

Omron default comm settings are 7 data bits, 2 stop bits, even parity, 9600 baudrate.

Hope this helps

SVN
 
SVN,
I've tried your tips and it make the same thing. I've a LK-201, it exist LK-201-V1, what's the difference and could be the problem?
 
fons04,

I think the -V1 should not be a problem. If the RCV LED lights but XMT doesn't, it means that the comm settings are not matching (assuming cable is correct as mentioned by you). I think if you post the snapshots of comm settings in CX-Programmer and positions of all the switches (front and back) of LK201-V1 then it will be easier to find out the problem.

SVN
 
I, on the host link LK201:
the RCV not light,it flash when i tried to connect, the RUN does'nt light, the XMT not, the ERROR not.
SW1=0
SW2=0
SW3=5
SW4=2

The dips switchs at back are:
1=off
2=off
3=on
4=off
and 0V at vertical one

Setting:
#card host link= 0
Port COM1
9600
7
Even parity
bit stop 2
response delay 2
thanks
 
fons4, for Host Link Unit to work , the RUN LED should be ON.

Check the following for "RUN Indicator does not light" from the section 5-4 of W143-E1-6 (Host Link Units System Manual)
If you don't have the manual then you can download it from Omron USA site.​
Possible Causes:​
1) Faulty contact in the connector between the PLC and the Host Link Unit.​
2) PLC is resetting the Host Link Unit.​
3) Host Link Unit is defective.​
Remedies:​
1) Check and repair connections.Turn the PLC OFF, then ON.​
2) If necessary, check the PLC for an error or abnormal reset.​
3) Replace the Host Link Unit.​
SVN
 

Similar Topics

I have a project to replace an old Omron #3G2C7CPU74E unit with a newer type. The equipment is still in operation. I have no documents or drawings...
Replies
17
Views
10,434
I have an Omron Sysmac C28K PLC with a 3G2C7-LK201-EV1 Host Link Unit on it, I am able to connect with SYSWIN 3.4 without issue. I also have an...
Replies
1
Views
3,460
I have put together a post to read memory areas from the Omron PLC using VBA. This is a serial communication using (Sysmac Way) Host Link...
Replies
0
Views
2,931
Has anyone done any reverse engineering on the Omron Mailbox (MB) command? There are a few things I want to do, such as upload program only, that...
Replies
0
Views
1,592
How do i send a host link command such as "@01RXI00010400" to plc and read and extract the response string using the VisualBasic MID command.I'm...
Replies
3
Views
4,063
Back
Top Bottom