Modbus RTU Device not returning Function Code and Device Address connected tp AS-P.

[sesrikanth]

Hi, I am using SBO 3.1 with SmartX Ccontroller AS-P. I have few RTU modbus devices connected to the controller and trying to get data and not successful. After examining trace log, I see the device is not returning function code and the device address.

What can be done about this for AS-P to accept the response or is there any work around. The log portion is as below.

2022-03-26 07:05:38.204 [1699824512] nsp.pin.modbus.DeviceRequests Polling device id = 5
2022-03-26 07:05:38.205 [1699824512] nsp.pin.modbus.SerialTransport Sending request 3 to server (for 1 registers from offset 5) to device id: 5
2022-03-26 07:05:38.215 [1699824512] nsp.pin.modbus.TransportSerialRS485 WriteData TX on /dev/tac_comporta: 05 03 00 04 00 01 C4 4F
2022-03-26 07:05:38.221 [1699824512] nsp.pin.modbus.TransportSerialRS485 ReadData RX on /dev/tac_comporta: 24 08 10 A0 52 C2
2022-03-26 07:05:38.221 [1699824512] nsp.pin.modbus.SerTransport Flush buffer. Protocol error code = 10
2022-03-26 07:05:38.222 [1699824512] nsp.pin.modbus.SerialTransport Invalid response. (MODBUS_RESP = 10 Requested code (= 3). Requested offset 4 1 2
2022-03-26 07:05:38.222 [1699824512] nsp.pin.modbus.DeviceMonitorRequest Poll device id = 5 result = 3 current status = 0 failure count = 0

[CraigEl · Accepted solution]

This looks like a known issue, defect #45976. Contact your local Schneider Electric support and request hotfix 3.1.2.11303 or upgrade to EBO 3.2.3.7000 or higher.

[sesrikanth]

Thank you @CraigEl 

I understand you mean the hotfix 3.1.2.11303 is for SmartX Controller AS-P firmware.

Am I right ? Confirm, please ?

[CraigEl]

Correct!

[clicame1]

Hi, from where i can download that hotfix please?

[CraigEl]

@clicame1 you don't appear to be an EcoXpert and therefore don't have access to download the latest Consolidated Hotfix that includes the fix mentioned above. I see that you have already contacted your regional support team who will be able to guide you further.