Dear Mateusz,
Usually the issue is in the PLC.
You can doublecheck it by telnet into the PLC IP on port 2000.
for example: telnet 192.168.0.100 2000
You should get an active connection and if you send something you should see it too in a binary form.
If you can't telnet it means the PLC does not open the port 2000 properly.
Check if you use the proper HW_ID for T_CON. X1 is usually 64 and X2 is 72.
The send block also needs a constant trigger.
Tell me if you need an example.
Feladó: Tech-talk <tech-talk-bounces at aps.anl.gov>, Mateusz Nabywaniec via Tech-talk <tech-talk at aps.anl.gov> nevében
Elküldve: 2021. október 28., csütörtök 15:42
Címzett: tech-talk at aps.anl.gov; Dominik Domagała; dirk.zimoch at psi.ch; timo.korhonen at ess.eu
Tárgy: Failed connection using e3-s7plc to Siemens S7-1500
Hello,
Together with @Dominik
Domagała we are trying to connect with Siemens S7-1500 using e3-s7plc module (https://gitlab.esss.lu.se/e3/wrappers/communication/e3-s7plc)
created by ESS.
We have EPICS 7.0.5 installed on CentOS 7 VM as well as E3 modules.
Here is our start cmd based on : http://epics.web.psi.ch/software/s7plc/YHLhtcPLCa.pdf
‘’’
require s7plc
epicsEnvSet("TOP","$(E3_CMD_TOP)/..")
s7plcConfigure cpu1,192.168.0.1,2000,240,240,1,2000,500
dbLoadRecords ("$(TOP)/db/records.db")
iocInit
‘’’
Unfortunetely we have the error:
`s7plcConnect cpu1: background connect to 192.168.0.1:2000 failed: Connection refused.`
The firewall on VM and host side are disabled.
PLC Program configuration:
-Full Access.
-Enabled PUT/GET connections.
-Data blocks ale with full access , not optimized
-TCON in stand by with status BUSY
TCON configuration:
-Active Est. ON
-Unspecified partner with IP address (E3 address)
-TCP connection type by port 2000.
When we are starting E3 server we are getting information as below
10/28/21 08:44:00.763 s7plcConnect cpu1: background connect to 192.168.0.1:2000 failed: Connection refused
We can’t get why E3-s7plc does not work on our machine. Does anybody had similar issue or successfully connected using e3-s7plc with Siemens S7-1513-1?
Thanks in advance,
Mateusz Nabywaniec
S2Innovation, Cracow, Poland
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