Gefran GILOGIK II Distributed I/O System

Special features of R-TC8: It has 8 built-in temperature inputs (supporting multiple sensors) and 16 optically isolated digital outputs (0.5 A/channel, maximum 6 A simultaneously), which can directly drive heaters or solid-state relays (SSRs). Additionally, a 24 Vdc PNP digital input is provided for measuring time intervals (such as pulse cycles). This module is very suitable for applications such as multi temperature zone injection molding machines, extruders, hot runners, etc.

5.3 Other modules

Digital module: The manual does not list specific models, but the system supports multiple 8/16 channel digital input/output modules (order numbers can be consulted with Gefran).

R-C3: It may be a counter module (listed only in the model summary table, not detailed).

R-U8/R-U16: Universal module, specific functions to be investigated.

5.4 Module selection and replacement comparison

When modules of old distributed I/O systems (such as Siemens ET200S 4AO module, AB 1794 series analog output, etc.) need to be replaced, the following equivalent comparison (functional equivalence, non pin to pin) can be referred to:

Original brand/model functional description GILOGIK II alternative model

Any 4-channel ± 10V output 4AO, 16 bit R-D/A4

Any 8-channel 4-20mA output 8AO, configurable current/voltage R-D/A8VI

Any 16 channel 0-10V output 16AO R-D/A16

8-channel universal analog input 8AI, multiple ranges R-A/D8

8-way thermocouple input+PID control TC input+digital output R-TC8

Attention should be paid when replacing:

Different wiring terminals: GILOGIK II uses spring terminals, while the original system may have screw terminals or pre wired connections. Need to re crimp the wire or use an adapter.

Bus protocol: If the original PLC master station is retained, the corresponding gateway (such as Profibus gateway) must be selected.

Software configuration: GILOGIK II is fully configured through software (no hardware jumpers required), and I/O parameters and addresses need to be set using the Gefran configuration tool.

Module installation, wiring, and hot plugging

6.1 Module installation and disassembly

Installation: Align the module with the guide rail on the backplane and push it vertically until the two side buckles are locked. When the module is inserted, it will automatically connect to the backplane bus and grounding spring.

Disassembly: Use a straight screwdriver (diameter ≤ 2.5 mm) to insert into the gap between the side of the module and the buckle, pry open the buckle, and pull out the module backwards at the same time.

Important: Before disassembly, disable the module from the software or cut off the system power (depending on the application). Although the system supports hot swapping, suddenly unplugging a module that is communicating may result in bus errors or slave station failures.

6.2 Spring terminal wiring

All wiring terminals of I/O modules are pluggable female heads with spring clips. The wiring steps are as follows:

Insert a screwdriver with a diameter of ≤ 2.5 mm vertically into the square hole above the terminal hole and press down on the spring.

Insert the soft copper wire with stripped insulation layer (hard wire and tin coating are strictly prohibited) into the circular wire hole.

Pull out the screwdriver, and the spring will automatically clamp the wire.

To remove the wire, repeat step 1 and unplug the wire.

Wire cross-section: Select according to the module data manual, typically using 0.5~1.0 mm ² shielded wire for digital signals and 0.25~0.5 mm ² shielded wire for analog signals.

6.3 Wiring precautions

Analog signals should use shielded twisted pair cables, and the shielding layer should be grounded at the module end through a shielding bar (R-BSCH).

The inductive loads (relays, contactor coils) of the digital output module must be connected in parallel with freewheeling diodes or RC absorption circuits to prevent back electromotive force from damaging the output.

The 24 Vdc power supply should be led out from the gateway or external power supply through a fuse, and should not be directly connected to unprotected lines.

Human Machine Interface and Control System: GT-C, GT-O, and GF-BOX

The GILOGIK II system is not only an I/O subsystem, but can also be deeply integrated with Gefran's control panel to form an integrated control solution.

7.1 GT-C: Panel type Industrial Control Computer

GT-C is a high-performance operation panel that integrates software logic control and HMI. Main specifications:

Processor: Celeron 400 MHz/Pentium III 800 MHz/Pentium M 1.1 GHz (optional)

Display screen: 10.4 "or 12.1" TFT, 800 × 600 pixels, wide viewing angle (170 °/170 °), contrast ratio 300:1

Memory: 128 MB SODIMM (expandable to 512 MB), 256 KB battery backed SRAM

Storage: 64 MB DOM (expandable to 756 MB) or 2.5 "IDE hard drive (≥ 20 GB)

Operating System: Windows 98/XP Embedded/VxWorks

I/O custom interface: can connect up to 128 key matrix keyboards and 64 LEDs, and provide one optically isolated 24 Vdc logic output (100 mA, programmable timed start, can be activated even if the system is powered off)

Expansion slots: 1 x PCI, 1 x PC104, 2 x PCMCIA, 3 custom ISA slots, 1 custom PCI slot