133
Appendix A
Comparison with C200H-CT001-V1
The C200H-CT021 High-speed Counter Unit has two-axis pulse input functions. These functions are not iden-
tical with the pulse input functions of the C200H-CT001-V1 High-speed Counter Unit. Refer to the following
table.
Function
C200H-CT021
C200H-CT001-V1
Pulse input
performance
Voltage input: 50,000 cps
Line driver input: 75,000 cps
50,000 cps
Pulse input
specification
With line driver input and without 5-V input
With 5-V input and without line driver input
Input setting
DM area
DIP switch
Reset mode
Number of modes set with DM: 11
Number of modes set with DIP switch: 17
Output specification
NPN or PNP (selectable)
8 points/common
8 points/two axes
NPN output only
4 points/common
8 axes/axis
Operating mode
Newly added: Simple counter mode
Canceled: Latch mode
Unavailable: Simple counter mode
Available: Latch mode
Data transfer
function
Impossible to change the transfer area or num-
ber of transfer data blocks after the Unit is
turned ON.
Transfer area:
DM 0000 to DM 1999 for the C200H and
DM 0000 to DM 6655 for the C200HS, C200HX,
C200HG, and C200HE
Impossible to change the transfer area or num-
ber of transfer data blocks after the Unit is
turned ON.
Transfer area:
DM 0000 to DM 1999 for the C200H, C200HS,
C200HX, C200HG, and C200HE
IORD/IOWR
instructions
Available
Unavailable
External forced
output
Set with IR bits.
Not controlled with ladder programs.
Available only when external outputs are not
inhibited. Enabled with a DM command.
Set with IR bits.
Enabled with IR command. (Enable forced out-
put)
Sign indication
+: 0, –: F
+: 0, –: 1
Number of
comparative upper
and lower limits
16 sets for two counters
16 sets/counter
Number of preset
values
20 sets for two counters
20 sets/counter
Count input signal
Up and down pulses input
Input A: Down
Input B: Up
Pulse and direction input
Input A: Direction
Input B: Pulse
Up and down pulses input
Input A: Up
Input B: Down
Pulse and direction input
Input A: Pulse
Input B: Direction
Set value
range/Present
counter value
BCD/Hexadecimal data
BCD data only
Error clear
The error clear command can be issued with the
data transfer or IOWR instruction.
With the error read operation.
Error Flag
Kept on hold while the Unit has the error.
Cleared with the error clear command.
Cleared when the error is read.
Error code
Read repeatedly.
Read only once.
Unit number
0 to F
0 to 9
Summary of Contents for C200H-CT021
Page 1: ...C200H CT021 High speed Counter Unit Operation Manual Revised December 2000 ...
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