Mitsubishi Electric MELSEC iQ-F FX5 Programming Manual page 809

Use DHSCR if the output should be given when the counting result becomes equivalent to the comparison
value regardless of the scan time of the CPU module.
When the number of instructions that can be simultaneously used is exceeded, use a general-purpose
comparison instruction.
Precautions
The value specified in (s2) should only be the channel of high-speed counter number (1 to 8) set by the parameter.
• An operation error occurs in the following cases.
• When a channel which is not set by the parameter or a value other than K1 to 8 is specified
• When an LC device number which is not set by the parameter is specified
For other precautions, refer to MELSEC iQ-F FX5 User's Manual (Application).
Operation error
Error code Description
(SD0/SD8067)
3405H A channel number outside the range or the LC device is specified.
3582H The DHSCR instruction is executed in an interrupt program.
3600H A channel number for which the channel setting is not set is specified in the operand in channel number specification of the high-speed
counter.
3780H The DHSCS, DHSCR, and DHSZ instructions are used exceeding the maximum limit of the in number of these instructions.
14 HIGH-SPEED COUNTER INSTRUCTION
14.1 High-speed Processing Instruction
14
807