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.
Designed for integration into the Sysmac automation platform, the Omron NX-PG0342-5 functions as a high-density, multi-channel motion control interface. This Pulse Output Unit enables precise, open-loop positioning control of servo and stepper drives by transmitting high-frequency pulse train sequences. Featuring a robust line driver output stage and PNP-type external I/O logic, it achieves synchronous, microsecond-level synchronization when coupled with an NX-series EtherCAT Coupler Unit. The physical interface relies on dual 34-pin MIL connectors, optimizing panel space and streamlining high-density field wiring.
| Parameter | Value |
|---|---|
| Manufacturer | Omron |
| Model Number | NX-PG0342-5 |
| Series | NX Series I/O System |
| Number of Channels | 4 channels |
| Pulse Output Form | Line driver output (PNP type I/O) |
| Velocity Control Range | 1 to 4,000,000 pps (pulses per second) |
| Position Control Range | -2,147,483,648 to 2,147,483,647 pulses |
| External Connections | MIL connector (34 terminals x 2) |
| I/O Refreshing Method | Synchronous I/O refreshing or task period prioritized refreshing |
| Current Consumption | 50 mA/CN maximum (from I/O power supply) |
| Maximum Cable Length | Line driver outputs: 10 m / Other I/O: 3 m |
| Dimensions (W x H x D) | 30 x 100 x 71 mm |
| Weight | 0.15 kg |
| Shipping Weight (Calculated) | 1.00 kg |
| Connector Block | Interface Specification | Signals Mapping (Per Channel) |
|---|---|---|
| MIL Connector 1 & 2 | 34-Pin Headers (Dual Row) | 5 Inputs (External limits, origin, stop, etc.) |
| Pulse Driver Interfaces | Differential Line Driver Line Out | 1 Forward Pulse output, 1 Reverse Pulse output |
| Auxiliary I/O | PNP External Sourcing Outputs | 3 General-purpose outputs per channel |
The NX-PG0342-5 represents the high-density MIL connector design. If your panel layout relies on push-in screwless clamp terminals, consider the NX-PG0112 or similar configurations. Ensure your Sysmac Studio development suite is updated to support this model's revision level to avoid hardware configuration mismatch errors during compilation.
To prevent timing skew and pulse loss when operating near the 4,000,000 pps maximum velocity limit, enforce rigid adherence to the 10-meter physical line driver wiring limit. High-frequency line-driver signals are prone to attenuation and crosstalk if run parallel to high-voltage AC motor lines or three-phase power buses.
Always employ high-quality shielded twisted-pair (STP) cabling for the MIL-connector breakout to the servo/stepper drives. Ensure the cable shields are grounded directly to a low-impedance ground bar as close to the drive termination point as possible, mitigating high-frequency EMI generated by neighboring variable frequency drives.
CRITICAL WARNING:
Completely isolate and lock out all control system power sources before mounting, removing, or wiring the MIL connectors. Operating on live connections can cause permanent hardware damage to the internal output drivers or result in erratic motor movements.
Align the integrated guide rail on the back of the NX-PG0342-5 with the DIN rail structure and slide the module firmly into place next to the adjacent NX unit.
Ensure the unit side-locking hooks slide together securely to establish reliable internal bus communication and power contact rails.
Verify correct orientation of the dual 34-pin MIL connector plugs before mating them. Push until the connector locks click firmly, indicating full contact seat.
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Returns & Warranty

Designed for integration into the Sysmac automation platform, the Omron NX-PG0342-5 functions as a high-density, multi-channel motion control interface. This Pulse Output Unit enables precise, open-loop positioning control of servo and stepper drives by transmitting high-frequency pulse train sequences. Featuring a robust line driver output stage and PNP-type external I/O logic, it achieves synchronous, microsecond-level synchronization when coupled with an NX-series EtherCAT Coupler Unit. The physical interface relies on dual 34-pin MIL connectors, optimizing panel space and streamlining high-density field wiring.
| Parameter | Value |
|---|---|
| Manufacturer | Omron |
| Model Number | NX-PG0342-5 |
| Series | NX Series I/O System |
| Number of Channels | 4 channels |
| Pulse Output Form | Line driver output (PNP type I/O) |
| Velocity Control Range | 1 to 4,000,000 pps (pulses per second) |
| Position Control Range | -2,147,483,648 to 2,147,483,647 pulses |
| External Connections | MIL connector (34 terminals x 2) |
| I/O Refreshing Method | Synchronous I/O refreshing or task period prioritized refreshing |
| Current Consumption | 50 mA/CN maximum (from I/O power supply) |
| Maximum Cable Length | Line driver outputs: 10 m / Other I/O: 3 m |
| Dimensions (W x H x D) | 30 x 100 x 71 mm |
| Weight | 0.15 kg |
| Shipping Weight (Calculated) | 1.00 kg |
| Connector Block | Interface Specification | Signals Mapping (Per Channel) |
|---|---|---|
| MIL Connector 1 & 2 | 34-Pin Headers (Dual Row) | 5 Inputs (External limits, origin, stop, etc.) |
| Pulse Driver Interfaces | Differential Line Driver Line Out | 1 Forward Pulse output, 1 Reverse Pulse output |
| Auxiliary I/O | PNP External Sourcing Outputs | 3 General-purpose outputs per channel |
The NX-PG0342-5 represents the high-density MIL connector design. If your panel layout relies on push-in screwless clamp terminals, consider the NX-PG0112 or similar configurations. Ensure your Sysmac Studio development suite is updated to support this model's revision level to avoid hardware configuration mismatch errors during compilation.
To prevent timing skew and pulse loss when operating near the 4,000,000 pps maximum velocity limit, enforce rigid adherence to the 10-meter physical line driver wiring limit. High-frequency line-driver signals are prone to attenuation and crosstalk if run parallel to high-voltage AC motor lines or three-phase power buses.
Always employ high-quality shielded twisted-pair (STP) cabling for the MIL-connector breakout to the servo/stepper drives. Ensure the cable shields are grounded directly to a low-impedance ground bar as close to the drive termination point as possible, mitigating high-frequency EMI generated by neighboring variable frequency drives.
CRITICAL WARNING:
Completely isolate and lock out all control system power sources before mounting, removing, or wiring the MIL connectors. Operating on live connections can cause permanent hardware damage to the internal output drivers or result in erratic motor movements.
Align the integrated guide rail on the back of the NX-PG0342-5 with the DIN rail structure and slide the module firmly into place next to the adjacent NX unit.
Ensure the unit side-locking hooks slide together securely to establish reliable internal bus communication and power contact rails.
Verify correct orientation of the dual 34-pin MIL connector plugs before mating them. Push until the connector locks click firmly, indicating full contact seat.
Global Express Shipping
Returns & Warranty
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| Country of origin |
Japan
|