19
Precautions when Reusing Programs from Earlier Models Section 2-4
Host Link Model Compatibility Modes
Note When the MS command reads the CPU Unit’s status data and an FAL or
FALS instruction has not been executed, spaces (ASCII code 20 hex) are
included as the FAL/FALS message in the response frame for some models
(fixed length response in the table above). In the other models, no data is
included as the FAL/FALS message in the response frame (variable length
response frame) if an FAL or FALS instruction has not been executed.
Host link
model
compatibility
mode
Host link model
(Model used as basis for host
computer’s program)
RR, RL, RH, RC, RD,
and RJ commands
RG command MS
command
(see note)
Data words per response frame Response
data format
1
st
frame 2
nd
frame 1
st
frame 2
nd
frame
A mode
(CS, CJ, and
C)
C Series
SRM1 built-in ports
CPM1 built-in ports
CPM1A built-in ports
CQM1-CPU
@@ built-in ports
C200HS-CPU
@@ built-in ports
C200HX/HG/HE-CPU
@@ built-in ports
C200HW-COM@@ Communications
Board ports
CS/CJ Series
CS2H-CPU
@@(-EIP) built-in ports
CS1G/H-CPU
@@H built-in ports
CS1G/H-CPU
@@-EV1 built-in ports
CS1D-CPU@@H built-in ports
CJ1G/H-CPU
@@H built-in ports
CJ1G-CPU@@ built-in ports
CJ1M-CPU@@ built-in ports
CS1W-SCB21-V1/41-V1 (unit version:
Pre-Ver. 1.2) Serial Communications
Board ports
CS1W-SCU21-V1 (unit version: Pre-Ver.
1.2) Serial Communications Unit ports
CJ1W-SCU21/41 (unit version: Pre-Ver.
1.2) Serial Communications Unit ports
30 words 31 words 121
words
125
words
Variable
length
B mode
(CVM1/CV)
CVM1-CPU
@@ built-in ports
CV-CPU@@ built-in ports
CV500-LK201 Host Link Unit
Fixed length
C mode
(C200H)
C200H-LK101/LK201/LK202 Host Link
Units
29 words 30 words 89 words 89 words Variable
length
D mode
(C500/C120)
C500-LK103/LK203 Host Link Units
3G2A5-LK101/LK201 Host Link Units
3G2A6-LK101/LK201/LK202 Host Link
Units
89 words 60 words
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