Allen Bradley 1336-GM1 Internal Communication Board

Configured for internal bus communication and data transmission in 1336 Adjustable drive networks, the Allen Bradley 1336-GM1 (1336-GM1 Internal communication board) provides direct physical/electrical execution via the internal SCANport architecture.

Hardware Specifications

Profinet / EtherNet/IP Deterministic Networks and Bus Communication

The 1336-GM1 establishes robust data interchange across drive platforms utilizing dedicated Remote I/O protocols and physical backplane interfaces. Firmware flash compatibility is managed via the hardware configuration state, ensuring deterministic command execution cycles across connected nodes. The 14-pin internal SCANport connector maps directly to the drive architecture, while the 3-pin Remote I/O connector handles external network drops. I/O image scaling is fixed at 8 words, limiting cyclical data payloads to designated control registers. Network status, port activity, and overall module health are monitored continuously via integrated diagnostic LEDs, isolating communication faults during runtime without interrupting the host drive control loop.

Frequently Asked Questions

Q: What is the power source for the 1336-GM1 communication board?

A: The board draws its operating power directly from the host drive via the internal mounting interface, requiring no external power supply.

Q: How is the node address or network configuration established on this module?

A: Configuration is executed via an onboard 8-position DIP switch, which sets hardware-level communication parameters prior to drive initialization.

Q: Is the 1336-GM1 hot-swappable while the host drive is energized?

A: No. Power to the host drive must be completely removed and capacitive voltage discharged before installing or removing the internal communication board to prevent backplane bus damage.

Field Installation Guidelines

1. Verify that the host drive is fully de-energized and locked out in accordance with standard electrical safety protocols.
2. Secure the internal-mount card directly onto the drive's designated SCANport interface, ensuring proper pin alignment on the 14-pin connector.
3. Set the 8-position DIP switch to match the intended Remote I/O network address and baud rate requirements prior to enclosure closure.
4. Connect the 3-pin standard Remote I/O cable to the corresponding terminal block, ensuring proper shielding and ground continuity to minimize electromagnetic interference.
5. Apply power to the host drive and verify that the module, port, and network LEDs indicate normal operational status.