Gefran GILOGIK II Distributed I/O System

Communication: Ethernet (10/100), 2xUSB, 2xCOM, PS/2, VGA, etc

Protection level: IP65 front panel

7.2 GT-O: Remote Control Panel

GT-O is a remote display and operation unit used in conjunction with GT-C or GF-BOX, with a maximum distance of 25 meters through dedicated cables. It does not have a local processor, but serves as a graphics terminal for the host. The keyboard configuration is similar to GT-C (8 function keys, 23 screen management keys, 20 customizable control keys, 49 keys with LED, etc.), the front panel is IP65, and the working temperature is 0-50 ℃.

7.3 GF-BOX: Box type Industrial Control Computer

GF-BOX is an industrial PC suitable for control cabinets, using the same processor and expansion capabilities as GT-C, but without a display screen. It connects to GT-O through a remote VGA interface and can be placed deep in the electrical cabinet, while GT-O is installed on the cabinet door. GF-BOX also has a matrix keyboard/LED control interface and programmable timing output.

Typical combination: GF-BOX+GT-O form a low-cost and highly reliable operation station, used to replace traditional PLC+HMI discrete solutions.

Replacing discontinued distributed I/O systems: steps and precautions

8.1 Evaluate the key parameters of the original system

Before deciding to replace a discontinued distributed I/O (such as ABB S800 I/O, Siemens ET200M, Mitsubishi MELSEC remote I/O) with GILOGIK II, the following information needs to be collected:

Fieldbus protocol: Profibus DP, DeviceNet, CANopen, or proprietary? GILOGIK II gateway needs to be matched.

I/O points and types: List the number of all analog/digital/thermistor/thermocouple/high-speed counting channels.

Power supply method: Is the original system uniformly powered by the gateway? GILOGIK II gateway has a maximum power consumption of 3A. If the total power consumption exceeds this limit, an external power module needs to be added.

Installation space: Does the number of backplate slots meet the requirements? Do you need slots 4/8/12/18?

Wiring terminals: Did the original system use pluggable terminals? The spring terminal of GILOGIK II requires a suitable wire stripping length.

8.2 Hardware replacement steps

Dismantle the old rack: Power off, label all on-site cables, and remove the old I/O module and backplane.

Install new backplate: Choose Ω guide rails or directly fix according to the on-site backplate situation. Be sure to install a grounding system.

Cable arrangement: Reconnect the on-site signal line to the spring terminal module of GILOGIK II. The original cable can be used, but the ends need to be stripped and welded or cold pressed (GILOGIK II requires bare wires and cannot use cold pressed terminals). It is recommended to use R-CON series plug-in connectors for pre installation.

Insert gateway and I/O module: First insert the gateway (usually the first slot from the left), then insert any I/O module. The system supports geographic addressing without the need for sequential order.

Power supply and preliminary testing: After powering on, observe the gateway module LED and check if the backplane communication is normal.

8.3 Software Configuration

Use Gefran configuration software (to be obtained separately) for hardware configuration: scan the backplane to identify all modules and allocate I/O addresses.

Set gateway parameters: node ID, baud rate, protocol type, data mapping.

If communicating with a third-party PLC, a master station needs to be configured on the PLC side (such as importing GSD files into the Profibus master station).

Download the configuration to the gateway and test the I/O data exchange.

8.4 Common Problems and Solutions

Possible causes and solutions for the phenomenon

The gateway cannot go online due to the ERR LED being constantly on and insufficient power supply; Backboard damage; Gateway configuration error measuring 24 Vdc input, check current; Replace the backplane slot; Download configuration again

Part of the I/O modules were not recognized and the modules were not fully inserted; Poor contact of the backplane slot; Reinstall the module due to module malfunction; Clean the back panel contacts; Replace module testing

Inaccurate analog readings and poor grounding; Common mode interference; Range setting error check shielding grounding; Add signal isolators; Calibration range in software

GDNET communication timeout network cable fault; Switch configuration error; IP address conflict testing using cross network cable direct connection; Check the R-SW5 configuration; Ensure that the IP is in the same network segment

After replacing the module, rewiring is required. If there is no GILOGIK II wiring terminal, it can be retained on the original module. When replacing the module, unplug the terminal plug and insert the new module without rewiring

Practical Maintenance and Troubleshooting

9.1 Daily Maintenance

Regularly check whether the buckle between the backboard and the module is secure, especially for equipment that is subject to vibration.

Clean the air filter (if installed with ventilation openings) to ensure that the temperature inside the cabinet does not exceed 50 ℃.

Check if the spring terminal wiring is loose (gently press the wire with a screwdriver and it should not come off).