Central Processing Unit
5–14
1070 072 145-102 (01.07) GB
High-speed counters (ROD application)
The following peripheral conditions apply to operation with incremental ro-
tary transducers:
D
The function is available for counter 1 only.
D
The new mode is enabled by setting the MSB in word 20 of the OM2 orga-
nization module to HIGH. This leaves all remaining bits without signifi-
cance.
D
The maximum counter frequency is 10 kHz or 10,000 lines per second.
D
Counter 0 is restricted to limited simultaneous use, that is, without exter-
nal change of direction.
D
System utilization at 10 kHz in Encoder mode is approx. 20 per cent.
D
Encoder mode does not provide for setpoint value overrun.
D
The new mode provides the PLC with a doubled-value interpretation, that
is, at 1000 lines per revolution, 2000 pulses are counted.
D
Exceeding the permissible 10 kHz frequency will result in faulty counting
returns.
The delay of interrupt input 0 is modifiable. As a result, this high-speed input
can now also be used to recognize the LOW pulse of incremental rotary
transducers (ROD) having a pulse width of 100
m
s. In such case the following
specifications apply:
Specifications
High-speed counters as ROD
Counting frequency
max. 10 kHz (excessive frequency re-
sults in faulty counting results)
Input delay
D
LOW
³
HIGH
D
HIGH
³
LOW
Typically 20
m
s
Typically 20
m
s
Pulse duration
w
20
m
s
Содержание CL200
Страница 3: ...Antriebs und Steuerungstechnik CL200 Manual CL200 102 Edition ...
Страница 8: ...Contents VIII 1070 072 145 102 01 07 GB Notes ...
Страница 24: ...System Introduction 2 8 1070 072 145 102 01 07 GB Notes ...
Страница 38: ...Module Racks 3 14 1070 072 145 102 01 07 GB Notes ...
Страница 82: ...E 24 V Digital Input Modules 6 6 1070 072 145 102 01 07 GB Notes ...
Страница 104: ...Digital Input Output Modules 8 10 1070 072 145 102 01 07 GB Notes ...
Страница 110: ...DP EA4 Peripheral Bus Station Module 9 6 1070 072 145 102 01 07 GB Notizen ...
Страница 114: ...AG S Expansion Module 10 4 1070 072 145 102 01 07 GB Notizen ...
Страница 122: ...R200 R200P COM2 E Communication Modules 11 8 1070 072 145 102 01 07 GB Notizen ...
Страница 158: ...Appendix A 4 1070 072 145 102 01 07 GB Notes ...