Bosch CL200 - Page 49

Central Processing Unit
5–3
1070 072 145-102 (01.07) GB
D ZE200M
System clock, high-speed counters, interrupt inputs, MemoryCard
D ZE200AM
System clock, high-speed counters, interrupt inputs, 4 analog inputs, 1
analog output, MemoryCard
D ZE201
System clock, high-speed counters, interrupt inputs, 2nd serial interface
D ZE200-DP
System clock, high-speed counters, interrupt inputs, PROFIBUS-DP in-
terface. Handles the tasks of a bus master, and supports all DP compati-
ble slave devices.
D ZE200A-DP
System clock, high-speed counters, interrupt inputs, 4 analog inputs, 1
analog output, PROFIBUS-DP interface. Handles the tasks of a bus ma-
ster, and supports all DP compatible slave devices.
System clock
The system clock data is stored centrally in the S128 to S134 system area; it
is refreshed cyclically with every I/O image.
D The date values must be entered correctly.
D If the entry of a day of the week is required, the date must be entered cor-
rectly, and complete with day-of-week information.
High-speed counters
Two mutually independent 32-bit forward and reverse counters are availa-
ble. Each counter has two limit values. One of these counters also supports
position decoding via incremental rotary encoders.
. Refer to section 5.4.2, “X71 Interrupt and High-speed Counter Inputs”.
Interrupt inputs
The central processing units of the CL200 feature three 24 V interrupt inputs.
. Refer to section 5.4.2, “X71 Interrupt and High-speed Counter Inputs”.
Analog inputs and outputs
The analog output can supply a current or voltage rated signal.
. Refer to section 5.4.3, “X72 Analog Inputs and Outputs”.
MemoryCard
Central processing units ZE200M and ZE200AM feature a MemoryCard
slot. The PLCV program can be backed up to or loaded from a MemoryCard.
In addition, all central processing units facilitate program storage also in in-
ternal Flash-EPROM memory.
. See also section 5.3, “MemoryCard”.