Synchronous Update Mode; Memory Settings In Codesys; Program Memory - WAGO I/O SYSTEM 750 Manual

250 Run-time System CODESYS 2.3

8.9.5.1.2 Synchronous Update Mode

In the synchronous update mode the runtime behavior of CODESYS tasks can be
influenced by the internal data bus. The minimum task interval that can then be
achieved depends on the duration of an internal data bus cycle. The duration of an
internal data bus cycle, on the other hand, is based on the I/O modules connected
to the bus. As a rule of thumb: The shorter the internal data bus structure, the
shorter the cycle time and digital modules are faster than analog or complex ones.
In the event of an internal data bus error, the CODESYS tasks are blocked until
the error is rectified, i.e., when an internal data bus cycle has been successfully
executed again.
No call-up of internal data bus status when internal data bus errors are
present!
If an internal data bus error has occurred, it is not possible to call up the internal
data bus status using KBUS_ERROR_INFORMATION (mod_com.lib) while in
the synchronous update mode.
8.10

Memory Settings in CODESYS

The list below illustrates the standard memory allocation of the PFC200:
•

Program memory:

• Data memory:
• Input data:
• Output data:
• Flags:
• Retain:
• Function block limitation: 12 * 4096 bytes = 48 kbytes
8.10.1 Program Memory
The program memory (also code memory) cannot be configured and is limited to
a maximum of 16 Mbytes. The memory space actually available is based on the
scope of installed applications.
750-8208 PFC200 CS 2ETH RS CAN DPM
16 Mbyte (max.)
64 Mbytes
64 kbytes
64 kbytes
24 kbytes
104 kbytes
Version 1.1.0, valid from FW Version 02.06.20(09)
WAGO-I/O-SYSTEM 750
Manual