Implementing 3-Switch XOR Ladder Logic with Internal Bit
Implement a 3-SPST switch XOR light circuit in LogixPro or RSLogix 500 using an internal relay bit. Includes truth tables, boolean equations, and verified.
The Bently Nevada 3500/42M 176449-02+128229-01 is a four-channel Proximitor Seismic Monitor designed for machinery protection by continuously comparing monitored vibration and position parameters against configured alarm setpoints. The system consists of the 3500/42M main monitor board (176449-02) and the Prox/Seismic I/O module with internal terminations (128229-01). Channels are programmed in pairs using 3500 Rack Configuration Software to perform up to two functions simultaneously, including radial vibration, thrust position, differential expansion, eccentricity, REBAM, acceleration, velocity, shaft absolute, and circular acceptance region. The module processes signal inputs from proximity, velocity, or acceleration transducers, providing continuous parameter conditioning and driving alert and danger alarms.
| Part Number | Description |
|---|---|
| 3500/42-AXX-BXX | Proximitor Seismic Monitor |
| 176449-02 | 3500/42M Proximitor/Seismic Monitor Main Module |
| 128229-01 | Prox/Seismic I/O Module with internal terminations |
| 128240-01 | Prox/Seismic I/O Module with external terminations |
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Signal Inputs | Accepts 1 to 4 proximity, velocity, or acceleration transducer signals |
| Power Consumption | 7.7 watts, typical |
| Input Impedance | 10 kΩ (Proximitor and acceleration inputs) |
| Transducer Power Supply | -24 Vdc |
| Recorder Output | 4 to 20 mA, 0 to +12 Vdc range across load, 0 to 600 Ω load resistance |
| Recorder Resolution | 0.3662 µA per bit |
| Recorder Accuracy | ±0.25% at room temperature, ±0.7% over temperature range |
| Buffered Output Impedance | 550 Ω |
| Alarm Setpoint Range | 0 to 100% of full-scale for each measured value |
| Alarm Setpoint Accuracy | Within 0.13% of desired value |
| Rack Space (Monitor) | 1 full-height front slot |
| Rack Space (I/O Module) | 1 full-height rear slot |
| Operating Temperature | -30 degC to +65 degC (-22 degF to +149 degF) |
| Storage Temperature | -40 degC to +85 degC (-40 degF to +185 degF) |
| Operating Humidity | 95% Non-condensing |
| Dimensions (Main Module) | 241.3 mm x 24.4 mm x 241.8 mm (9.50 in x 0.96 in x 9.52 in) |
| Weight (Main Module) | 0.91 kg (2.0 lb) |
| Dimensions (I/O Module) | 241.3 mm x 24.4 mm x 99.1 mm (9.50 in x 0.96 in x 3.90 in) |
| Weight (I/O Module) | 0.20 kg (0.44 lb) |
| Connector Pin | Function |
|---|---|
| CH1 PWR/B | Channel 1 Power |
| CH1 COM | Channel 1 Common |
| CH1 SIG/A | Channel 1 Signal |
| CH1 SHLD | Channel 1 Shield |
| CH2 PWR/B | Channel 2 Power |
| CH2 COM | Channel 2 Common |
| CH2 SIG/A | Channel 2 Signal |
| CH2 SHLD | Channel 2 Shield |
| CH3 PWR/B | Channel 3 Power |
| CH3 COM | Channel 3 Common |
| CH3 SIG/A | Channel 3 Signal |
| CH3 SHLD | Channel 3 Shield |
| CH4 PWR/B | Channel 4 Power |
| CH4 COM | Channel 4 Common |
| CH4 SIG/A | Channel 4 Signal |
| CH4 SHLD | Channel 4 Shield |
| INHB | Inhibit Input |
| RET | Return |
| COM | Recorder Common |
| REC1 | Channel 1 Recorder Output |
| REC2 | Channel 2 Recorder Output |
| REC3 | Channel 3 Recorder Output |
| REC4 | Channel 4 Recorder Output |
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The Bently Nevada 3500/42M 176449-02+128229-01 is a four-channel Proximitor Seismic Monitor designed for machinery protection by continuously comparing monitored vibration and position parameters against configured alarm setpoints. The system consists of the 3500/42M main monitor board (176449-02) and the Prox/Seismic I/O module with internal terminations (128229-01). Channels are programmed in pairs using 3500 Rack Configuration Software to perform up to two functions simultaneously, including radial vibration, thrust position, differential expansion, eccentricity, REBAM, acceleration, velocity, shaft absolute, and circular acceptance region. The module processes signal inputs from proximity, velocity, or acceleration transducers, providing continuous parameter conditioning and driving alert and danger alarms.
| Part Number | Description |
|---|---|
| 3500/42-AXX-BXX | Proximitor Seismic Monitor |
| 176449-02 | 3500/42M Proximitor/Seismic Monitor Main Module |
| 128229-01 | Prox/Seismic I/O Module with internal terminations |
| 128240-01 | Prox/Seismic I/O Module with external terminations |
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Signal Inputs | Accepts 1 to 4 proximity, velocity, or acceleration transducer signals |
| Power Consumption | 7.7 watts, typical |
| Input Impedance | 10 kΩ (Proximitor and acceleration inputs) |
| Transducer Power Supply | -24 Vdc |
| Recorder Output | 4 to 20 mA, 0 to +12 Vdc range across load, 0 to 600 Ω load resistance |
| Recorder Resolution | 0.3662 µA per bit |
| Recorder Accuracy | ±0.25% at room temperature, ±0.7% over temperature range |
| Buffered Output Impedance | 550 Ω |
| Alarm Setpoint Range | 0 to 100% of full-scale for each measured value |
| Alarm Setpoint Accuracy | Within 0.13% of desired value |
| Rack Space (Monitor) | 1 full-height front slot |
| Rack Space (I/O Module) | 1 full-height rear slot |
| Operating Temperature | -30 degC to +65 degC (-22 degF to +149 degF) |
| Storage Temperature | -40 degC to +85 degC (-40 degF to +185 degF) |
| Operating Humidity | 95% Non-condensing |
| Dimensions (Main Module) | 241.3 mm x 24.4 mm x 241.8 mm (9.50 in x 0.96 in x 9.52 in) |
| Weight (Main Module) | 0.91 kg (2.0 lb) |
| Dimensions (I/O Module) | 241.3 mm x 24.4 mm x 99.1 mm (9.50 in x 0.96 in x 3.90 in) |
| Weight (I/O Module) | 0.20 kg (0.44 lb) |
| Connector Pin | Function |
|---|---|
| CH1 PWR/B | Channel 1 Power |
| CH1 COM | Channel 1 Common |
| CH1 SIG/A | Channel 1 Signal |
| CH1 SHLD | Channel 1 Shield |
| CH2 PWR/B | Channel 2 Power |
| CH2 COM | Channel 2 Common |
| CH2 SIG/A | Channel 2 Signal |
| CH2 SHLD | Channel 2 Shield |
| CH3 PWR/B | Channel 3 Power |
| CH3 COM | Channel 3 Common |
| CH3 SIG/A | Channel 3 Signal |
| CH3 SHLD | Channel 3 Shield |
| CH4 PWR/B | Channel 4 Power |
| CH4 COM | Channel 4 Common |
| CH4 SIG/A | Channel 4 Signal |
| CH4 SHLD | Channel 4 Shield |
| INHB | Inhibit Input |
| RET | Return |
| COM | Recorder Common |
| REC1 | Channel 1 Recorder Output |
| REC2 | Channel 2 Recorder Output |
| REC3 | Channel 3 Recorder Output |
| REC4 | Channel 4 Recorder Output |
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Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Color pattern |
Greyish White
|
| Country of origin |
United States
|
| Power source |
DC Power
|