COTRUST CTH200 Series User Manual

CTH200 Series PLC User Manual
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You can see newly added “ct_savevmem” under directory tree after installation:
2) Call CT_SAVEVMEM library
Click “Network” where you add function block, double click “SAVE_VMEM” under “library”, it
shows in “Network”
Note
Make sure EN is always ON before completing write, in other Word use sm0.0 or act_en
to call.
3) CT_SAVEVMEM library function explanation
Parameter
address
Explanation
Type
Note
str_addr
Start address of V
memory
WORD
Can be constant or variable.
Start address of VW500 is 500
length
Length unit: word
WORD
Permanently store the length of contiguous V
memory.
Length of VB500-VB4499 is 2000 or 2000 for
VW500-VW4498
act_en
Allow write bit
BOOL
When this bit is 1, write permanent memory,
automatically reset after write, and the bit is
kept at 1 during the write.
finished
End write sign bit
BOOL
Automatically reset at the beginning of writing
and set to 1 at the end of writing.
Note: total length of write is integer multiple of the Word.

COTRUST CTH200 Series Specifications

General

Brand	COTRUST
Model	CTH200 Series
Category	Controller
Language	English