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Invensys TRICONEX 3721 3700/3700A 3701 3703E 3704E 3720 Analog Input Modules
3721 3700/3700A 3701 3703E 3704E 3720 Analog Input Modules Function
An analog input (AI) module includes three independent input channels. Each input channel receives variable voltage signals from each point, converts them to digital values, and transmits the values to the three main processor modules on demand. In TMR mode, one value is then selected using a midvalue selection algorithm to ensure correct data for every scan.
Sensing of each input point is performed in a manner that prevents a single failure on one channel from The analog input module requires a separate external termination panel (ETP) with a cable interface to the Tricon backplane. Each module is mechanically keyed for proper installation in a Tricon chassis. affecting another channel. Each analog input module sustains complete, ongoing diagnostics for each channel. Failure of any diagnostic on any channel activates the Fault indicator for the module, which in turn activates the chassis alarm signal. The module's Fault indicator merely reports a channel fault, not a module failure-the module can operate properly with as many as two faulty channels.
Analog input modules support hotspare capability which allows online replacement of a faulty module.
The analog input module requires a separate external termination panel (ETP) with a cable interface to the Tricon backplane. Each module is mechanically keyed for proper installation in a Tricon chassis.
3721 image is for reference only product style, specific data of manufacture and product version, please refer to the actual product delivery!
3721 3700/3700A 3701 3703E 3704E 3720 Analog Input Modules Specification
| Model Number | 3704E | 3720 | 3721 |
| Voltage | 0-5V or ()()" +6% | 0-5VDC, + 6% | 0 to 5 VDC or -5 to +5 VDC1, + 6% |
| Type | TMR | TMR | TMR |
| No. of Input Points | 64, commoned | 64, single-ended | 32 diflerential, DC-coupled |
| Isolated Points | No | Yes | Yes |
| Input Update Rate | 75 ms | 10 ms | 10 ms |
| Resolution | 12 bits | 12 bits or 14 bits programmable | 12 bits or 14 bits programmable |
| Accuracy | < 0.25% ofFSR from 0° to 60°C | <0.15%of FSR from 0° to60° C | < ()5% ofFSR from 0° to 60° C |
| Input Resistance (load) | 30 MQ(DC), min. | K)MQ(DC), min. | 10MQ(DC), min. |
| Power-OfT Resistance | 30k£2(DC), typical | 140 kQ(DC), typical | 14()k(2(DC), typical |
| Common Mode Rejection | n/a | n/a | -85 dB(DC 100 Hz) |
| Common Mode Range | n/a | n/a | 12V to+12V peak |
| Leg-to-Leg Isolation | 200 kU typical | 420 k(2 typical | 420 kU typical |
| Normal Mode Rejection | -1 dB @ 8Hz -12dB@60Hz 18dB@ 120Hz | -3 dB @ 8Hz -17dB@60Hz 23 dB@ 120Hz | -3 dB @ 23 Hz -8 dB @ 60 Hz -14dB@ 120 Hz |
| Input Overrange Protection | 150 VDC/115 VAC continuous | 150 VDC/115 VAC continuous | 150 VDC/115 VAC continuous |
| Current Range | 0-20 mA, 250Qshuntfor5V 50() Q shunt for 10V | 0-20 mA (plus6% over-range) with 250 Q shunt resistor | 0-20 mA with 250 Q shunt resistor |
| Diagnostic Indicators Module Status | PASS, FAULT, ACTIVE | PASS, FAULT, ACTIVE, FIELD | PASS, FAULT, ACTIVE, FIELD |
| Color Code | Copper | Yellow | Yellow |
| Model Number | 3700/3700A | 3701 | 3703E |
| Voltage | 0-5V, + 6% (only 3700A) | O-IOV | 0-5V or ()-10V, + 6% |
| Type | TMR | TMR | TMR |
| No. of Input Points | 32. diff, DC coupled | 32, diff; DC coupled | 16, diff, isolated |
| Isolated Points | No | No | Yes |
| Input Update Rate | 55 ms | 55 ms | 50 ms |
| Resolution | 12 bits | 12 bits | 12 bits |
| Accuracy | <.15% ofFSR, from 0° to 60°C | <J5%ofFSR, from 0° to 60°C | <.15% ofFSR, from 0° to 60°C |
| Input Resistance (load) | 30 MQ(DC), min. | 30 MQ(DC), min. | 30 MQ(DC),min. |
| Power-Off Resistance | 30 KQ(DC), typical | 30 KQ(DC), typical | 3()M(2(DC), min. |
| Common Mode Rejection | -8() dB(DC-lOOHz), typical | -80 dB(DC-K)OHz), typical | -90 dB @ 60Hz, min. -lOOdB @DC, min. |
| Common Mode Range | 12V to+12V peak | •12V to+!2V peak | ±200V peak |
| Leg-to-Leg Isolation | 200 KQ typical | 200 KQ typical | 20 KQ typical |
| Normal Mode Rejection | |||
| @8Hz @ 60Hz @ 120Hz | -3 dB -17dB -23 dB | -3dB -l7dB -23 dB | -3 dB -17dB •23 dB |
| Input Overrange Protection | 150 VDC/115 VAC continuous | 150 VDC/115 VAC continuous | 150 VDC/115 VAC continuous |
| Current Range | 0-20 mA, | 0-20 mA, | 0-20 mA, |
| 250 Q shunt | 500 Q shunt | 250 Qshuntfor5V 500 Q shunt for 10V | |
| Diagnostic Indicators | |||
| Module Status | PASS, FAULT, ACTIVE | PASS, FAULT, ACTIVE | PASS, FAULT, ACTIVE |
| Color Code | Yellow | Light Yellow | Mustard Yellow |
Q: Is your product new or refurbished?
A: All our products are original new with one year warranty.
Q: How many days the goods will arrive my hands if I place the order now?
A: As soon as we receive the payment, I will ship the products immediately.
It usually take 3-5 days from China to your hands.
Q: Could you give me some discount?
A: Contact Stella to get more discount for 3721
Q:Can you ship the goods to my country?
A: Pls don't worry ,We can ship the goods to worldwide
Q:What payment mothod we used?
A:We usually use T/T (Telegraphic Transfer),and we can received with in 1-2days
Q:Can I contact you on Email?
A: You can contact me online to get my email add
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