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CHAPTER A: LM10 AND GE FANUC 90-30 WITH DEVICENET™
LM10 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL A–13
FIGURE A–1: Ladder Logic for Data Monitoring
Login (Configuration Level) to the LM10:
The ladder logic for configuring (login, user level, and entry configuration mode) the LM10
using COMMREQ is shown below. The ladder logic is configured as follows:
• Rung 1 and 2 have a timer (thousands), as well as set and Reset coils, which
toggles the T1 contact after the value in timer PV overflows. With the values
indicated, the T1 contact will toggle every five (5) seconds.
• Rung 3 has a Block Move word, 3 blocks.
• Rung 4 has the COMMREQ ladder instruction.
Refer to DeviceNet Object Model Class 64 instance for additional details.
In the ladder shown. we are logging in, setting the user level, and entering the
configuration mode of the LM10 relay set to MAC ID 9. Some key word settings to login to
the LM10 from Slave 9 are shown below:
• Word 11: Slave MAC ID setting (for example, 9)