INS_RL1000GW_REV– 15 Jul 2016 PAGE 107
INSTALLATION AND OPERATION MANUAL
RL1000GW
TECH SUPPORT: 1.888.678.9427
for the gateway application. Usage of Tx,Rx and GND lines are allowed.
e. Verify by following methods
i. Use the command “iec101-gw show all” to verify the operational status (‘OP ST’) is UP.
ii. Follow serial port and gateway counters to check if serial traffic is received and
transmitted at the serial port.
Show commands “serial port show slot 1 port <x>” and “iec101-gw cnt show” are
available.
3. Trouble shooting
a. Most trouble shooting is usually at the IEC101 connection to the locally connected
RTU. The IEC 104 connection between the gateway and the client (SCADA) is based on
straightforward Ethernet connectivity which is easy to establish and diagnose.
b. If the IEC101 (‘OP ST’) is in any other state other than ‘UP’, try the following
i. Verify your serial physical connection.
ii. Verify the RTU is on and properly configured.
iii. Follow the serial port counters to verify traffic is received and transmitted at the serial
port. If only Rx counters are progressing, check again the serial properties of both the
gateway and the RTU (baudrate, parity and such).
iv. Verify the IEC properties are consistent between the gateway and the RTU (CA, LA, CA
length, LA length, COT)
