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MELSEC-Q
3 SPECIFICATIONS
Address
Decimal (Hex)
Protocol
CH1 CH2
Application Name
Initial
value
MC Non Bi Pd
Registration
Reference
section
128
(80
H)
For
programmable
controller CPU
information
clear(
1)
Programmable controller CPU information clear request
0000
H: No request
4C43
H: Requested
0 RW
—
Not allowed Section 11.1.7
129 to 143
(81
H to 8FH)
Use prohibited System area
—
Switching mode no. designation (0001H to 0009H, 00FFH)
0000H: No designation 0006H: Non procedure protocol
0001H: MC protocol (format 1) 0007H: Bidirectional protocol
0002H: MC protocol (format 2) 0009H: Pre-defined protocol
0003H: MC protocol (format 3)
0004H: MC protocol (format 4)
00FF
H: GX Developer
connection
144
(90
H)
304
(130H)
0005
H: MC protocol (format 5)
Transmission specifications after switching designation
Designates transmission specifications (below) after switching
when b15 of this area is 1 (ON).
Operation setting (b0) 0: Independent 1: Link
Data bit (b1) 0: 7 bit 1: 8 bit
Parity bit (b2) 0: No 1: Yes
Odd/even parity (b3) 0: Odd 1: Even
Stop bit (b4) 0: 1 bit 1: 2 bit
Sum check code (b5) 0: No 1: Yes
Write during RUN (b6) 0: Prohibited 1: Allowed
Setting modification (b7) 0: Prohibited 1: Allowed
Communication rate (b8 to b11) 50 bps to 230400 bps
For system (b12 to b14) All 0
145
(91
H)
305
(131H)
For designation
of mode
switching
Transmission specifications after switching (b15) designation
0: Match settings in GX Developer
1: Match settings in this area
0 RW Not allowed
Section 4.5.2
User's Manual
(Application)
146
(92
H)
306
(132H)
Signal setting
RS and DTR signal status designation
0: Off 1: On
RS(RTS) signal (b0)
ER(DTR) signal (b2)
For system (b1), (b3) to (b15)
0005
H
RW
Allowed Section 3.2.1
DTR/DSR(ER/DR), DC control designation
147
(93
H)
307
(133H)
• Transmission control (b0)
0: DTR/DSR control 1: DC code control
• DC1/DC3 control (b8)
0: No control 1: Controlled
• DC2/DC4 control (b9)
0: No control 1: Controlled
0
DC1/DC3(Xon/Xoff) code designation
148
(94
H)
308
(134H)
• DC1 code (b0 to b7)
00
H to FFH: DC1 code
• DC3 code (b8 to b15)
00
H to FFH: DC3 code
1311
H
DC2/DC4 code designation
149
(95
H)
309
(135H)
For designation
of transmission
control
• DC2 code (b0 to b7)
00
H to FFH: DC2 code
• DC4 code (b8 to b15)
00
H to FFH: DC4 code
1412
H
RW
Section 9.4.5
User's Manual
(Application)
150
(96
H)
310
(136H)
Word/byte units designation
0: Word units 1: Byte units
0 RW
—
Chapters 6
Chapter 7
Section 9.4.5
151
(97
H)
311
(137H)
For
designation of
communicatio
n control
CD terminal check designation (for RS-232)
0: Check 1: No check
1 RW
Allowed
Section 3.2.1
Section 9.4.5