E5CN Connection Instability Fix

[mslaffin]

On 11/14 Chase Ott noticed there were numerous errors in the log when testing the E5CN connection on develop.

Here's the log capture:
log_2024-11-14_15-50-15.txt

socket disconnections and reconnection attempting:

[15:49:37] - WARNING: Socket not open for unit 1. Attempting to reconnect...
[15:49:37] - WARNING: Socket not open for unit 2. Attempting to reconnect...
[15:49:37] - WARNING: Socket not open for unit 3. Attempting to reconnect...

incomplete modbus messages:

[15:49:37] - ERROR: Error reading temperature from unit 2: Modbus Error: [Input/Output] Modbus Error: [Invalid Message] Incomplete message received, expected at least 4 bytes (3 received)

frequently no response from slave controller:[15:49:38] - ERROR: Error reading temperature from unit 2: Modbus Error: [Input/Output] No Response received from the remote slave/Unable to decode response