MELSEC-A
3. SPECIFICATIONS
3 - 14
3.6 Remote Register Allocation
The following table gives the assignment of the remote registers in the high-speed
counter module.
The initial values of the remote registers are set when power is switched on or the
programmable controller CPU is reset.
Transmission
Direction
Addresses
Description
Initial
Value
Read/Write Refer
To
CH1 CH2
Write area of
master station
High-speed
counter module
RWwm RWwm+8
Preset value setting area
(L)
0
Write only
Section 7.2
Section 7.3
RWwm+1 RWwm+9
(H)
RWwm+2 RWwm+A
Pulse input mode/function selection register/
external output hold or clear setting area
*1
Chapter 5
Chapter 9
RWwm+3 RWwm+B
Coincidence output point No. 1
setting area
(L)
Chapter 6
RWwm+4 RWwm+C
(H)
RWwm+5
RWwm+D
Sampling/cycle time setting area
Section 9.4
Section 9.5
RWwm+6 RWwm+E Coincidence output point No. 2
setting area
*2
(L)
Chapter 6
RWwm+7 RWwm+F
(H)
High-speed
counter module
Read area of
master station
RWrn RWrn+8
Present value storage area
(L)
Read only
Section 5.3
RWrn+1 RWrn+9
(H)
RWrn+2 RWrn+A
Latch count value/sampling count
value/periodic pulse count previous
value storage area
(L)
Section 9.3
Section 9.4
Section 9.5
RWrn+3 RWrn+B
(H)
RWrn+4 RWrn+C Periodic pulse count present value
storage area
(L)
Section 9.5
RWrn+5 RWrn+D
(H)
RWrn+6
Sampling/periodic counter flag storage area
(for both CH1 and CH2)
Section 9.4
Section 9.5
RWrn+7
RWrn+E
RWrn+F
Unusable –––––
m, n: Addresses assigned to the master station by station number setting.
*1 External output hold or clear setting is used for both CH1 and CH2.
The value set to the remote register of CH1 is valid.
*2 In the AJ65BT-D62D-S1, external output (coincidence output) does not switch
on-off if coincidence output No. 2 is set. However, the counter value magnitude
comparison (coincidence, greater, less) output signals (X signals) switch on-off
as ordinarily.
POINT
The unusable remote registers are used in the system and should not be used by
the user.
If any of them is used by the user, normal operation cannot be guaranteed.
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