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+1 vote
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by

RUT955 RS485 Modbus gateway crash after reboot.

Not every time but too often :-)

from syslog 30 seconds after ntpd started:

Mon Jun  8 13:41:53 2020 daemon.info procd: Instance modbusd::instance1 s in a crash loop 6 crashes, 0 seconds since last crash

Router model Teltonika RUT955 LTE
Firmware version RUT9XX_R_00.06.06.1
Kernel version 3.18.44
Bootloader version 3.2.1

Had the same problem with previous firmware.

Disabling and enabling rs485 modbus gateway in web interface,
is working, and the gateway is restarted.

Please advice.

BR

Joakim

4 Answers

0 votes
by anonymous
happened again today after reboot no modbus answer from RUT955.

In syslog after reboot at 02:00:

Mon Jun 15 02:02:14 2020 daemon.info procd: Instance modbusd::instance1 s in a crash loop 6 crashes, 0 seconds since last crash
0 votes
by
and today after syslog after reboot :

Fri Jun 19 16:43:21 2020 local1.notice fwblock[6590]: Applying WebUI blocks
Fri Jun 19 16:43:23 2020 daemon.info procd: Instance modbusd::instance1 s in a crash loop 6 crashes, 0 seconds since last crash
Fri Jun 19 16:43:24 2020 local1.crit hotplug-netifd-netstate[6784]: ERROR: uci set (set)Fri Jun 19 16:43:24 2020 local1.crit hotplug-netifd-netstate[6784]: ERROR code: uci err: Invalid argument
Fri Jun 19 16:43:24 2020 local1.info hotplug-gsmstate[6786]: envACT: ifup
Fri Jun 19 16:43:24 2020 local1.info hotplug-gsmstate[6786]: envDEV: wwan0

am I the only one using the rs485 modbus gateway ?  :-)
0 votes
by anonymous

Hello,

The corresponding "daemon.info procd: Instance modbusd::instance1 s in a crash loop 6 crashes, 0 seconds since last crash" error code appears due to init script imperfection that will be addressed in the next firmware release. The script tries to run modbusd daemon although it is disabled in the Modbus configuration, therefore, the error does not have any effect on the Modbus Gateway operation.

by anonymous
Hello,

I also have this issue with RUT9XX_R_00.06.06.1. I have a periodic reboot and the RS485 Modbus Gaetway randomly crashes after reboot. I need to restart the RUT955 in order to get back my access to my RS485 sensors.
Do you know when will be published the next firmware ? Thanks !
by anonymous
Hello,

RUT9XX_R_00.06.07 firmware is already released. It can be downloaded from the following link:
https://wiki.teltonika-networks.com/view/RUT955_Firmware_Downloads
0 votes
by anonymous
Hello, I updated my RUT with firmware RUT9XX_R_00.06.07.1 and I still have this issue.

RS485 Modbus gateway randomly crash after reboot (not always but sometimes).