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Description
Application Scenarios:
A plant has forty 1336 PLUS II drives commissioned in the 1990s. They run perfectly — pumps, fans, conveyors, mixers — and nobody wants to replace them. The problem is not the drives; it is that the plant’s modernization programme is built on DeviceNet. Every new skid arrives with DeviceNet drops, the PLC scanner expects DeviceNet nodes, and the maintenance team wants drive current, speed and fault codes on the HMI instead of on a keypad behind a cabinet door.That gap is exactly what 1336-GM5 closes. Its value shows up in four recurring situations:
- Networked control without drive replacement — the drive keeps its power stage and control board; the board adds the network. Migration cost is avoided entirely.
- Remote visibility of process and drive health — logic command/status and reference/feedback are carried as polled I/O, so speed, current and faults reach the PLC and SCADA without hard-wired analogue loops.
- Remote configuration and diagnostics — explicit messages read and write drive parameters and fault queues, so an engineer can retune or diagnose from the control room.
- Datalink flexibility — up to four datalinks (A–D), each adding two input and two output words, carry additional process values without consuming scanner I/O.
The board is designed for the 1336 family — 1336 IMPACT, 1336 PLUS, 1336 PLUS II, 1336 FORCE and 1336 SPIDER drives. One important constraint from Rockwell’s own documentation: lower-horsepower products may not support an internally mounted 1336-GM5 board, and 1336 FORCE applications require 30 hp and above with a standard adapter board. Compatibility should be confirmed against the specific drive before ordering.
3. Parameter:
| Main Parameters | Value / Description |
|---|---|
| Product Model | 1336-GM5 (also written 1336GM5; Series A variant 1336-GM5/A) |
| Manufacturer | Allen-Bradley / Rockwell Automation — documented in publication 1203-UM010 (Firmware 1.xxx–3.xxx) |
| Product Category | DeviceNet communication board / SCANport-to-DeviceNet adapter (embedded board form factor) |
| Communication Protocol | DeviceNet (ODVA conformance tested) — polling I/O plus explicit messaging |
| Host Interface | Internal 14-pin SCANport connector — mounts inside the drive, no external cable required |
| Network Interface | 5-pin Phoenix connector for the DeviceNet drop |
| Supported Baud Rates | 125, 250, 500 kbps — 125 kbps factory default |
| Network Distance | 500 m @ 125 kbps; 200 m @ 250 kbps; 100 m @ 500 kbps |
| I/O Capability | 16-bit logic command/status and 16-bit reference/feedback enabled for polling by default; I/O words 2–10 depending on host |
| Datalinks | Datalinks A–D, each 2 input + 2 output words, enabled via DIP switches SW1-1 to SW1-4 (default all disabled) |
| Power Supply | 12–25 V DC supplied from the DeviceNet network, 40 mA typical — no separate drive-mounted supply needed |
| Configuration | DIP switches: node address 0–63 (SW2-1 to SW2-6, default 63), data rate (SW2-7/8, default 125 kbps), datalinks (SW1) — settings take effect after power-up |
| Fault Behaviour | Default: if the scanner goes to program mode or the network fails, the SCANport product is faulted by the module (configurable) |
| Diagnostics | Two dual-colour LEDs — DeviceNet network status and SCANport connection status, with defined blink/steady codes for online, connected, timeout, bus-off and configuration faults |
| Environmental | Operating 0 °C to +50 °C; storage −40 °C to +85 °C; 0–95% relative humidity non-condensing |
| ESD Susceptibility | 4 kV contact, 8 kV air — static control precautions mandatory |
| Mechanical | Approx. 71.1 mm (H) × 114.3 mm (W) × 12.7 mm (D); weight approx. 0.1–0.45 kg depending on build |
| Compatible Hosts | 1336 IMPACT, 1336 PLUS, 1336 PLUS II, 1336 FORCE (≥30 hp, standard adapter board), 1336 SPIDER — confirm low-horsepower support |
| Lifecycle Status | Obsolete / discontinued by the manufacturer — available as surplus and refurbished through the obsolete-parts channel |
4. Technical Principles and Innovative Values:
Innovation Point 1 — Embedded rather than external: 1336-GM5 mounts inside the drive and connects to the internal 14-pin SCANport connector. Compared with the external 1203-GK5 module, this removes the DIN rail, the housing, the 8-pin mini-DIN interface and the SCANport cable. Fewer parts and no external cable run means less panel space, lower installed cost, and — importantly — no external cable acting as an antenna in an EMI-heavy MCC.Innovation Point 2 — Protocol translation with two communication classes: The board converts DeviceNet messages into SCANport protocol and supports both polled I/O (logic commands, reference and feedback for real-time control) and explicit messaging (parameter read/write, fault queue queries). Polled I/O handles the fast cyclic data; explicit messages handle configuration. That split is why one board can serve both control and maintenance without compromise.Innovation Point 3 — Datalinks for extra process data: Each of the four datalinks adds two input and two output words on top of the standard I/O image. Engineers use them to move secondary values — auxiliary setpoints, process feedback, computed values — without expanding the scanner’s I/O table. A practical caution from the manual: verify that the host product supports datalinks before enabling them, and never let two adapters claim the same datalink.Innovation Point 4 — Configuration by DIP switch, no software required: Node address, data rate and datalink selection are all set with onboard DIP switches. A technician can commission a replacement board in minutes with a screwdriver — no laptop, no configuration tool, no licence. For a plant with dozens of identical drives, this is the difference between a planned-hour swap and a project.Innovation Point 5 — Deterministic, network-powered operation: Drawing just 40 mA at 12–25 V DC from the DeviceNet network itself, 1336-GM5 adds no power supply burden and no additional wiring to the drive. It is a true drop-in: power and communication arrive on the same five-pin connector.Innovation Point 6 — Diagnostics you can read without a tool: Two dual-colour LEDs report both sides of the bridge independently — DeviceNet network health and SCANport connection health — with distinct patterns for “online but not connected”, “connected and running”, “I/O connection timeout” and “bus-off / address conflict”. A maintenance technician can distinguish a network problem from a drive-interface problem by looking at the board.Innovation Point 7 — Defined fault behaviour by default: Out of the box, if the scanner enters program mode or the network fails, the module faults the SCANport product. That fail-safe default prevents a drive from continuing to run on a stale command after communications are lost — a safety-relevant design choice, and one that can be reconfigured where the process requires a different response.
