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Model Number |
QJ71C24N |
QJ71C24N-R2 |
QJ71C24N-R4 |
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Stocked Item |
S |
S |
S |
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Certification |
UL • cUL • CE |
UL • cUL • CE |
UL • cUL • CE |
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Interface |
CH1 |
RS-232-compliance (D-sub 9P) |
RS-232-compliance (D-sub 9P) |
RS-422/485-compliance (2-piece plug-in connector socket block) |
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CH2 |
RS-422/485-compliance (2-piece terminal block) |
RS-232-compliance (D-sub 9P) |
RS-422/485-compliance (2-piece plug-in connector socket block) |
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Communication Method |
Full duplex communication/half duplex communication |
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Synchronization Method |
Start-up synchronization method |
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Transmission Speed |
• Transmission speed 230400 bps is available for only CH1. (Not available for CH2) |
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Data Format |
Start Bit |
1 |
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Data Bit |
7/8 |
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Parity Bit |
1 (vertical parity) or none |
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Stop Bit |
1/2 |
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Access Cycle |
MC Protocol Communication |
Processes one request during installed PLC CPU END processing. Number of scans that must be processed/number of link scans depends on the contents of the request |
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Nonprocedural Protocol Communication Bidirectional Protocol Communication |
Sends each time a send request is issued. Can receive at any time. |
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Error Detection |
Parity Check |
For all protocol, select odd/even by the parameter when there is an error |
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Sum Check Code |
Select by the parameter for MC protocol/Bidirectional protocol. Select by the user frame for non-procedure protocol. |
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Transmission Control |
• DTR/DSR signal control and DC code control are selected by the user |
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Line Configuration |
RS-232 |
1:1 |
1:1 |
- |
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RS-422/485 |
1:1, 1:n, n:1, m:n |
- |
1:1, 1:n, n:1, m:n |
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Max. Transmission Distance (Overall Distance) |
RS-232 |
15m (49.2 ft.) |
15m (49.2 ft.) |
- |
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RS-422/485 |
1200m (4592.4 ft.) (overall distance) |
- |
1200m (4592.4 ft.) (overall distance) |
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I/O Device Points Occupied |
32 points per slot (I/O assignment: Intelli: 32 points) |
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Applicable Connector for External Wiring |
9 pin D-sub (male) screw type |
- |
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5VDC Internal Current Consumption |
0.31A |
0.26A |
0.39A |
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Weight kg (lbs) |
0.20 (0.44) |
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Base Unit Slots Occupied |
1 |
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Telephone Line |
Public Line/Private Line/Cellular Phone |
ISDN |
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Connection Line |
Analog 2-wire type |
ISDN line |
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Initialization |
Hayes AT command-compatible product |
Hayes AT command-compatible product |
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Communication Standard |
V.34/V.32bis/V.32/V.22bis/V.22/V.21V.fc, 212A/103 |
V.110 (B-channel circuit exchange, D-channel packet switching) |
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Error Correction |
Class 4, class 10 compatible, V.42 compatible |
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Data compression |
Class 5 compatible, V.42bis compatible |
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Others |
Should be able to exercise flow control (RS/CS control) and have independent control of DR (DSR) signal. |
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Model Number |
QD51 |
QD51-R24 |
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Stocked Item |
- |
- |
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Programming Language |
AD51H-BASIC |
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Internal Memory |
Program memory: 64 kB/2 tasks (Capacity of task 1 + capacity of task 2 ≤ 64 kB); Common memory: 8 kB; Buffer memory: 6 kB; Expanded register: 1024 points (2 kB); Expanded relay: 1024 points |
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I/O to / From PLC CPU |
Input 26 points, output 23 points |
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Memory Protection |
Yes, (Flash ROM write protectable) |
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Communication Port |
QD51 : RS-232 2ch; QD51-R24 : RS-232 1ch, RS-422/485 1ch |
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Communication System |
Full-duplex |
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Synchronization System |
Synchronous |
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Transmission Speed (bps) |
300, 600, 1200, 2400, 4800, 9600, 14400, 19200, 28800, 38400; Usable when the total transmission speed of two channels is within 38400bps. |
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Data Format |
Start bit: 1; Data bit: 7 or 8; Parity bit: Even, odd, none; Stop bit: 1 or 2 |
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Transmission Control |
DTR/DSR (ER/DR) control: Available for RS-232 only; RS/CS control: Available for RS-232 only; CD signal control: No; DC1/DC3 (Xon/Xoff) control: Yes; DC2/DC4 control: No |
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Clock Function |
No |
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Power Failure Compensation |
No |
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Storage of User Program onto ROM |
No (only program area data is stored onto flash ROM) |
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Console |
IBM PC/AT personal computer |
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Multi-Task Debugging |
Possible (using debugger) |
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Line Configuration |
RS-232:1:1; RS-422/485:1:1, 1:n, n:1, m:n |
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Transmission Distance |
RS-232: Max. 15m (49.18 ft.); RS-422/485: Max. 1200m (3934.43 ft.) (overall distance) |
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I/O Device Points Occupied |
32 points (1 slot occupied) (I/O assignment: Intelligent) |
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Internal Current Consumption (5VDC) (A) |
0.26 |
0.31 |
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Weight (kg) |
0.2 |
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Base Unit Slots Occupied |
1 |
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