LG GLOFA-GM Series, Руководство пользователя, Страница: 235 / 358

Chapter 7 Communication function
7-116
5) GLOFA PLC Address Mapping
Direct variable areas of GLOFA PLC are %M, %Q and %I areas. AB Asynchronous Link communication driver
has access to 2K-bytes of %M area which is an internal memory area, and B3 area & N7 area of AB PLC-5 are
mapped to %M area. Only Bit area, B3 and Integer area, N7 among PLC-5 file types are accessible. Because bit
command is mapped to %MX area and word command is to %MW area, access to different area is not allowed.
[Table4-30] describes data memory mapping between AB PLC-5 and GLOFA PLC.
[Table 7.30] GLOFA PLC Address Mapping of AB communication driver
Type AB PLC-5 Address GLOFA-PLC Address Support Remark
Output O:xxx(xxx is octal) Not Available NO
Input I:xxx(xxx is octal) Not Available NO
Not supported in AB
communication driver.
Word: B3:xxx %MWxxx
Bit
Bit: B3:xxx/yy %MWxxx.yy
YES
Integer N7:xxx %MWxxx YES
xxx = 0 ~ 999(Word value)
yy = 0 ~ 15 (Bit value)
Added file
for extension
File number
(9 ~ 999)
Not Available NO
Not supported in AB
communication driver.
Remark
[Note 1] In Cnet I/F module, access to other areas than Bit & Integer areas of AB PLC-5 is not allowed. Error is
responded to the other areas than set to support allowed in the table.
As described in [Table 7.30], AB PLC-5 B3 area & N7 area are mapped together in %MW area of GLOFA PLC.
Namely, AB PLC-5 B3 : 0 area & N7 : 0 area are mapped in %MW0 area of GLOFA PLC in the range of %MW0
~ %MW999 which is the range of B3/N7areas of AB PLC-5. [Figure 7.21] describes GLOFA-PLC address
mapping for WORD area.