Fx3-Compatible Pulse Catch Function; Outline Of Fx3-Compatible Pulse Catch Function; Specifications Of Fx3-Compatible Pulse Catch Function - Mitsubishi Electric FX5 User Manual
Melsec iq-f series
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24.5
FX3-Compatible Pulse Catch Function
This section explains the FX3-compatible pulse catch function.
Outline of FX3-compatible pulse catch function
An FX3-compatible pulse catch function is mounted on the CPU module,
When the input signal X0 to X7 turns OFF→ON, a special relay (SM8170 to SM8177) is immediately set to ON by interrupt
processing. Use of these special relays in a normal sequence program enables pulse signals that are incompletely sampled in
regular input processing to be caught.
To use the FX3-compatible pulse catch function, pulse catch setting and the input response time must be set with parameters.
Functions equivalent to the MELSEC Q/L series pulse catch function are also mounted. For details of functions, refer to
Page 276 Pulse Catch Function.
The pulse catch function and FX3-compatible pulse catch function can be used simultaneously.
Specifications of FX3-compatible pulse catch function
This specifications of the FX3-compatible pulse catch function are explained below.
Performance specifications
FX3-compatible pulse catches can be used on inputs X0 to X7.
■Input response time
Input response times are shown below.
FX5U-32M, FX5UC-32M
X0 to X5
X6 to X7
■Assignment of input numbers and special relays
The assignments of input numbers and special relays are explained below.
Input number
X0
X1
X2
X3
X4
X5
X6
X7
FX5U-64M, FX5U-80M, FX5UC-64M,
FX5UC-96M
X0 to X7
Corresponding special relay
SM8170
SM8171
SM8172
SM8173
SM8174
SM8175
SM8176
SM8177
Input response time
5 μs
100 μs
24 HIGH-SPEED INPUT/OUTPUT FUNCTION
24.5 FX3-Compatible Pulse Catch Function
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