IDEC MICROSmart FC6A Series Ladder Programming Manual page 43

M8380 = User Communication Receive Instruction Cancel Flag (Port 21)
M8381 = User Communication Receive Instruction Cancel Flag (Port 22)
M8382 = User Communication Receive Instruction Cancel Flag (Port 23)
M8383 = User Communication Receive Instruction Cancel Flag (Port 24)
M8384 = User Communication Receive Instruction Cancel Flag (Port 25)
M8385 = User Communication Receive Instruction Cancel Flag (Port 26)
M8386 = User Communication Receive Instruction Cancel Flag (Port 27)
M8387 = User Communication Receive Instruction Cancel Flag (Port 28)
M8390 = User Communication Receive Instruction Cancel Flag (Port 29)
M8391 = User Communication Receive Instruction Cancel Flag (Port 30)
M8392 = User Communication Receive Instruction Cancel Flag (Port 31)
M8393 = User Communication Receive Instruction Cancel Flag (Port 32)
M8394 = User Communication Receive Instruction Cancel Flag (Port 33)
■ M8027 to M8032, M8034 to M8036, M8040 to M8046, M8051 to M8055, M8057 to M8063, M8130, M8131,
M8133 to M8136, M8161 to M8167, M8600 to M8602: Special Internal Relays for High-speed Counter
Special internal relays used for the high-speed counter. For details, see Chapter 5 "High-Speed Counter" in the "FC6A Series
MICROSmart User's Manual".
M8027 to M8032, M8130, M8131, M8161, M8162 = High-speed counter (group 1/I0)
M8034 to M8036, M8133, M8165, M8600 to M8602 = High-speed counter (group 3/I3)
M8040 to M8042, M8134, M8166 = High-speed counter (group 4/I4)
M8043 to M8046, M8135, M8136, M8163, M8164 = High-speed counter (group 5/I6)
M8051 to M8055 = High-speed counter (group 2/I1)
M8057 to M8063 = High-speed counter (group 6/I7)
■ M8070: SD Memory Card Mount Status
When an SD memory card is inserted in the FC6A Series MICROSmart and it has been recognized and can be used, M8070 is
turned on. M8070 is turned off if no SD memory card has been inserted or if it is not recognized.
■ M8071: Accessing SD Memory Card
M8071 is turned on while the SD memory card is being accessed. It is turned off when access has finished.
■ M8072: Unmount SD Memory Card
When M8072 is turned on, access to the SD memory card is stopped. To make an SD memory card accessible that has had
access to it stopped, insert the card once again.
■ M8073: Function Switch Status
This relay indicates the status of the function switch on the front of the CPU module.
M8073 is on when the function switch is 1. M8073 is off when the function switch is 0.
■ M8074: Battery Voltage Measurement Flag
This relay indicates the battery voltage measurement status of the backup battery.
When M8074 is turned on, the battery voltage starts being measured, and it is turned off when the measurement has finished.
■ M8080 to M8117: Data Link Communication Completed Relay
Special internal relays used for data link communication. For details, see Chapter 7 "Data Link Communication" in the "FC6A
Series MICROSmart Communication Manual".
■ M8120: Initialize Pulse
When operation (RUN) starts, M8120 is turned on for a period of one scan.
■ M8121: 1-s Clock
While M8001 is off, M8121 generates clock pulses in a 1 s cycle, with a duty
ratio of 1:1 (500 ms on and 500 ms off).
FC6A S MICROS L
ERIES MART
M8120
M8121
P M
ADDER ROGRAMMING ANUAL
1 scan time
Start
500 ms
500 ms
1 s
FC9Y-B1726
2: D
EVICES
2-11