Troubleshooting - GE Multilin MIWII Instruction Manual

4.6 COMMUNICATION 4 COMMUNICATIONS

4.6.2 TROUBLESHOOTING

The TROUBLESHOOTING option is available only when the PC is communicating with a relay. It is intended to check the
ModBus communication frames between the PC and the relay. In the upper part, the user can read any readable value
i
from the relay (setpoints, actual values) by entering the desired hexadecimal address , the type of data to read (Setpoints,
Actual Values), the number of registers (the length of each register is of 2 bytes) and the format of the data (integer, long,
float...), checking the checkbox at the left to make the PC start polling that address or unchecking it to stop.
In the lower part, data can be sent to writeable addresses of the relay. The working is similar to reading but, to send the
data, the user must press the SEND button.
4
Figure 4–24: TROUBLESHOOTING
Refer to preceding section to learn about Print Screen button.
i. To check how to read memory map addresses from the relay refer to the corresponding section further in this
chapter
4-22 MIWII Directional Power Protection System GEK-113308