RE: Question about the softioc connection refused ?

[Mark Rivers <rivers@cars.uchicago.edu>]

Hi Zhefu

> I edited the Koyo1.cmd file to change the ip address in function with two conditions:
> 1) drvAsynIPPortConfigure("Koyo1","127.0.0.1:5065",0,0,1)
> where 127.0.0.1:5065 is my localhost ip address.

This is not correct.  You have specified port 5065 for the drvAsynIPPort driver that is supposed to connect to a Modbus server.  Port 5065 is not used for Modbus, it is used for EPICS channel access.

You cannot run the test application in the Modbus directory unless you actually have a Modbus server that you can connect to.  Do you actually have a Modbus server?  If so, then you specify its IP address and port 502 in the drvAsynIPPortConfigure command.

Mark


________________________________
From: tech-talk-bounces@aps.anl.gov [tech-talk-bounces@aps.anl.gov] on behalf of lzfneu [lzfneu@live.com]
Sent: Saturday, March 19, 2016 7:26 AM
To: tech-talk@aps.anl.gov
Subject: Question about the softioc connection refused ?

hi,

I have encountered another softioc connection problem:

I have insatlled modbus-R2-8, and want to run test example (file named Koyo1.cmd)  in the iocTest folder.

I edited the Koyo1.cmd file to change the ip address in function with two conditions:

1) drvAsynIPPortConfigure("Koyo1","127.0.0.1:5065",0,0,1)
where 127.0.0.1:5065 is my localhost ip address.

2) drvAsynIPPortConfigure("Koyo1","192.168.1.255:5065",0,0,1)
where 192.168.1.255:5065 is my broadcast ip address that obtained by command ifconfig.

after starting the ioc:
$ modbusApp Koyo1.cmd

the results are both two ip address cannot connect the Koyo1, the error messages are shown below:

1) drvAsynIPPortConfigure("Koyo1","127.0.0.1:5065",0,0,1)
2016/03/19 19:40:19.158 Can't connect to 127.0.0.1:5065: Connection refused Koyo1 -1 autoConnect could not connect

2) drvAsynIPPortConfigure("Koyo1","192.168.1.255:5065",0,0,1)
2016/03/19 20:19:49.083 Can't connect to 192.168.1.255:5065: Network is unreachable Koyo1 -1 autoConnect could not connect

I am new in epics, could you plesase help me and thanks in advance.

Best regards

Zhefu