IDEC FC4A-C10R2 User Manual page 176

6: A N
LLOCATION UMBERS
M8032, M8036, M8042, M8046 High-speed Counter Reset Input
When M8032 or M8046 is turned on while two-phase high-speed counter 1 or 4 is enabled, the current value in D8045 or
D8051 is reset to the value stored in D8046 or D8052 (high-speed counter reset value) and the two-phase high-speed
counter counts subsequent input pulses starting at the reset value.
When M8032, M8036, M8042, or M8046 is turned on while single-phase high-speed counter 1, 2, 3, or 4 is enabled, the
current value in D8045, D8047, D8049, or D8051 is reset to 0, respectively.
M8050-M8077 Special Internal Relays for Modem Mode
See page 27-2.
M8080-M8117 Special Internal Relays for Data Link Communication
See page 25-6.
M8120 Initialize Pulse
When the CPU starts operation, M8120 turns on for a period of one scan.
M8121 1-sec Clock
While M8001 (1-sec clock reset) is off, M8121 generates clock
pulses in 1-sec increments, with a duty ratio of 1:1 (500 ms on and
500 ms off).
M8122 100-ms Clock
M8122 always generates clock pulses in 100-ms increments,
whether M8001 is on or off, with a duty ratio of 1:1 (50 ms on and
50 ms off).
M8123 10-ms Clock
M8123 always generates clock pulses in 10-ms increments,
whether M8001 is on or off, with a duty ratio of 1:1 (5 ms on and 5
ms off).
M8124 Timer/Counter Preset Value Changed
When timer or counter preset values are changed in the CPU module RAM, M8124 turns on. When a user program is
downloaded to the CPU from
Timer or counter preset and current values can be changed using
CPU again (see pages 7-8 and 7-10). When a timer or counter is designated as a destination of an advanced instruction, the
timer/counter preset value is also changed.
M8125 In-operation Output
M8125 remains on while the CPU is running.
M8130 High-speed Counter 1 (I0-I2) Reset Status (ON for 1 scan)
When reset input I2 is turned on while high-speed counter 1 is enabled either in two-phase or single-phase high-speed
counter mode, M8130 turns on for one scan to indicate that the high-speed counter 1 current value is reset. When reset
input special internal relay M8032 is turned on, M8130 does not turn on.
M8131 High-speed Counter 1 (I0-I2) Current Value Overflow (two-phase high-speed counter) (ON for 1 scan)
High-speed Counter 1 (I0-I2) Comparison ON Status (single-phase high-speed counter) (ON for 1 scan)
When the current value of high-speed counter 1 exceeds 65535 while two-phase high-speed counter is enabled, M8131
turns on for one scan.
When the current value of high-speed counter 1 reaches the preset value while single-phase high-speed counter is enabled,
M8131 turns on for one scan.
6-12
or when the changed timer/counter preset value is cleared, M8124 turns off.
WindLDR
« FC4A M
ICRO
500 ms
M8121
50 ms
M8122
5 ms
M8123
WindLDR without transferring the entire program to the
S U ' M »
MART SER S ANUAL
1 scan time
M8120
Start
500 ms
1 sec
50 ms
100 ms
5 ms
10 ms