Allen Bradley DeviceNet Communication Module (1203-GK5/1336-GM5)

Allen Bradley DeviceNet Communication Module (1203-GK5/1336-GM5)

Product Overview and Core Positioning

1. Product types and differences

Both devices are DeviceNet communication adapters, with the same core functions but different forms and installation methods. The specific differences are shown in the table below:

Features 1203-GK5 module 1336-GM5 board

Physical form independent module embedded board

Installation method: 35 × 7.5mm DIN rail mounting (compatible with 199-DR1 and other models of rails) directly installed inside specific SCANPort products (such as 1336 series drives)

Connection method: 8-pin mini DIN interface+SCANPort cable (up to 10m), 14 pin internal SCANPort connector (no additional cables required)

Most SCANPort products, such as 1305/1336 PLUS/1394, are only compatible with 1336 series drives (compatibility needs to be confirmed for some low-power models)

The packaging accessories include 5-pin/10 pin Phoenix connectors, DIN rail buckles with grounding wristbands, installation screws, nylon support columns, and communication housings

2. Core functions and features

Communication conversion: Convert DeviceNet messages to SCAnport protocol, supporting polling I/O (logical instructions/reference values/feedback values) and explicit messages (parameter read/write, fault query), DeviceNet speed supports 125K/250K/500Kbps.

Flexible configuration: Set node addresses (0-63), data rates, Datalink enablement, and fault response strategies through DIP switches; Support fault node recovery (SW2-7/8 needs to be set to ON, and the offline node address needs to be modified with software).

Status monitoring: Dual color LED indicator lights (DeviceNet network status, SCANPort connection status) provide real-time feedback on communication and device health status.

Compatibility: Compatible with various SCANPort products, such as 1305 AC micro drives, 1336 series frequency converters (IMPACT/PLUS/FORCE), 1394 multi axis motion systems, etc. Most products support 1-6 peripheral connections, with an I/O word length range of 2-10 words (please refer to the product manual for details).

DIP switch configuration (core pre steps)

The DIP switches of the two devices are in the same layout (1203-GK5 is at the bottom and 1336-GM5 is at the edge of the board). They need to be adjusted after power off to take effect after power on. The specific configuration items are as follows:

1. Node address (SW2-1~SW2-6)

Function: Set the DeviceNet network node address (0-63), default is 63, and ensure that the address is unique within the network.

Configuration rule: Binary encoding, SW2-1 is the lowest bit (1), SW2-6 is the highest bit (32), for example, address 3 corresponds to "000011" (SW2-1/SW2-2 is set to ON, the rest are set to OFF).

2. Data rate (SW2-7~SW2-8)

Function: Define DeviceNet communication rate, default 125Kbps, configuration rules are as follows:

|SW2-8 (high bit) | SW2-7 (low bit) | Data rate | Description|

|0 | 0 | 125Kbps | Default value|

| 0 | 1 | 250Kbps | - |

| 1 | 0 | 500Kbps | - |

|1 | 1 | Software configuration | Requires setting through DeviceNet Manager (supports fault node recovery)|

3. Data link (SW1-1~SW1-4)

Function: Enable Datalink (2 input+2 output words per channel, up to 4 channels), default fully disabled, configuration rules:

|Switch | Function | 0 (OFF) | 1 (ON)|

|SW1-1 | Datalink A | Disabled | Enabled|

|SW1-2 | Datalink B | Disabled | Enabled|

|SW1-3 | Datalink C | Disabled | Enabled|

|SW1-4 | Datalink D | Disabled | Enabled|

Attention: It is necessary to ensure that the SCANPort product supports Datalink and that the same Datalink is not occupied by other adapters.

4. Fault response (SW1-6~SW1-8)

Function: Configure device behavior in case of network failure (communication interruption) or controller idle (programming mode), triggering SCANPort product failure by default. Configuration rules:

|Switch | Function | 0 (OFF) | 1 (ON)|

|SW1-8 | Programming/Idle Fault | Triggered Fault | Non Triggered Fault|

|SW1-7 | Communication interruption fault | Trigger fault | No trigger fault|

|SW1-6 | Standby behavior | Output zero data | Maintain last state|

Safety Reminder: Modifying fault response requires risk assessment to avoid personal injury or equipment damage caused by continuous operation of the equipment.

Installation process and electrostatic protection

1. General safety requirements

Static protection: Modules/boards contain ESD sensitive components, and grounding wristbands must be worn during operation, refer to Rockwell document 8000-4.5.2 "Anti static Damage Guide".

Power off operation: Before installing the 1336-GM5 board, all power sources of the SCANPort product must be disconnected to avoid electric shock; The installation of 1203-GK5 requires disconnecting the DeviceNet network power supply.

2. Installation steps for 1203-GK5 module

Rail mounting: Insert the top hook of the module into the DIN rail, rotate and fasten it, and use an ohmmeter to check the grounding (the resistance between the metal shell of the RS-232 port of the module and the rail grounding is ≤ 2 Ω).

Cable connection:

DeviceNet: 5-pin connector (point-to-point) or 10 pin connector (daisy chain), wired by color (red=PWR, white=CAN_S, blue=CAN_L, black=COM, bare wire=shielded).