NT625-KBA01 Omron, NT625-KBA01 Datasheet - Page 50

• Manufacturer Part Number: NT625-KBA01
• Description: NT631 CHEM RESISTANT COVER
• Manufacturer: Omron

Specifications of NT625-KBA01

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

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Memory Link
Single Board Controller
with RS-232 Connection
to NT31/631
Time Saving Program Reuse
NT projects designed for Omron PLC connection can be converted to a Memory Link project with the NTST programming tool. This saves
time allowing PLC projects to be reused.
Memory Link Examples
When using the NT Memory Link feature, commands are
issued between the various NT screen objects and the
internal Memory Link table of the NT. Each screen object
refers to a location in the Memory Link table. Serial Memory
Link commands, composed of ASCII characters, are then
passed between the NT’s Memory Link table and an external
host device such as a PC or single board computer. Control
objects such as lamps and touch switches, and tables such
as the Numeral Table, refer to the NT memory area (Memory
Link Table).
Memory Link Command Structure
A Memory Link Command has the following format:
Request sent from host
m:
c1 to c4:
Request sent from NT
c1, to c4:
l1, l2:
d11 to d1n d2 to d2n:
s1, s2:
[ESC] R
1B
[ESC] R
1B
Technical Highlights
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d11
Check sum present/absent (1 BCD digit)
0 = Absent
1 = Present
8 = Absent (1 word read)
9 = Present (1 word read)
Start word number to read (4 BCD digits) 0000 to 9999
Data of 1 word
M
4D
M
4D
Start word number to read (4 BCD digits) 0000 to 9999
Number of words to read (2 BCD digits)
01 to 50 – 1 to 50 word
Contents of the read words (1 to 4 hex digits) 0 to FFFF
Check sum (2 hex digits)
m
c1
d1n
2C
c1
c2
c2
c3
c3
c4
d2
Data of 1 word
c4
I1
I1
I2
d2n
l1, l2:
s1, s2:
Host PC with RS-422 Connection
to NT31/631
I2
s1
Number of words to read (2 BCD digits)
00 – block read 100 words
01 to 99 – 1 to 99 words read
When m is (8) or (9), omit this setting
Check sum (2 hex digits)
When m is (0) or (8), omit this setting
s2
s1
[CR]
0D
s2
[CR]
0D