gefran GFXTERMO4 User Manual

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880397M_MSW_GFX4-GFXTERMO4_08-2018_ENG
GFX4 mode (dip-switch-7=OFF)
This lets you optimize the efciency of serial communication by integrating 4 zones in the GFX4. Memory is organized
in 5 groups: 4 already in GFX-compatible mode, plus one group dened as custom:
- Custom (additional memory map for dynamic addresses)
- Zone 1
- Zone 2
- Zone 3
- Zone 4
The custom group contains variables and parameters for a maximum of 120 words. The meaning of these words can
be changed.
There is a single value (Cod) set on the rotary switches; i.e., one for each GFX4 instrument. To access the data in
each zone, simply add an offset to the address (+1024 for Zone 1, +2048 for Zone 2, +4096 for Zone 3, +8192 for Zone 4).
Words in the custom group have addresses 0,...,119. The variables and parameters are dened by default. At ad-
dresses 200,...,319 we have words containing the value of the address of the corresponding variables or parameters. These
addresses can be changed by the user, offering the ability to read/write data with multi-word messages structured according
to various supervision requirements.
Protection of Maps 1-2
You have to write the value 99 on addresses 600 and 601 to enable change of
the custom group (addresses 200... 31). This value is reset at each switch-on.
Examples:
you can access the PV variable in Zone 1 with address Cod, 0+1024 or address Cod, 0 custom variable 1 (address Cod, 200
has value 1024);
you can access the PV variable in Zone 2 with address Cod, 0+ 2048 or address Cod, 29 custom variable 30 (address Cod,
229 has value 2048);
if you want to read the 4 process variables in sequence at the rst 4 addresses, set Cod, 200 = 1024, Cod.201 = 2048, Cod,202
= 4096, Cod,203 = 8192.
CONNECTION
Each GFX4 has an optically isolated serial port RS485 (PORT 1) with standard Modbus protocol via connectors S1
and S2 (type RJ10).
Connector S3 is suitable for direct connection to a Geex slave module or to a GFX-OP operator terminal. Remember that the
maximum communication speed of these devices is 19200 baud.
You can insert a serial interface (PORT 2). There are various models based on the eld bus required: Modbus, Probus
DP, CANopen, DeviceNet and Ethernet.
This communication port (PORT 2) has the same Cod address as PORT 1.
The parameters for PORT 2 are bAu.2 (select baud-rate) and Par.2 (select parity).
The Cod parameter (read only) shows the value of the node address, settable from 00 to 99 with the 2 rotary switches; the
hexadecimal settings are reserved.
A parameter can be read or written from both communication ports (PORT 1 and PORT 2).
Changing the
bAu (select baud-rate) and/or PAr (select parity) parameters
may cause communication failure.
To set the bAu and PAr parameters, you have to run the Autobaud procedure described in the “Instruction and warnings” manual.
Run the Autonode procedure for the Slave node parameter. For the Master, simply switch off and then back on.

gefran GFXTERMO4 Specifications

General

Category	Controller
Type	Temperature Controller
Supply voltage	24 V AC/DC
Number of outputs	4
Number of inputs	2
Mounting	DIN Rail
Display	LCD
Protection Rating	IP20
Output type	Relay
Input type	Thermocouple
Communication	RS-485
Operating Temperature	0°C to 50°C

Summary

CONFIGURATION AND PROGRAMMING MANUAL

INTRODUCTION

SERIAL COMMUNICATION (MODBUS)

GFX-compatible mode

Explains the GFX-compatible Modbus addressing mode.

GFX4 mode

Explains the GFX4 mode Modbus addressing.

ADVANCED SETTINGS

Input signal filtering

Input signal linearization

CT AUXILIARY INPUT (Ammeter)

Models with 4 TA

Describes current transformer inputs for 4 TA models.

Models with 1 CT

Describes current transformer inputs for 1 CT models.

AUXILIARY ANALOG INPUT (LIN/TC)

Auxiliary input parameter configuration

DIGITAL INPUTS

Digital input function assignment

Lists functions assignable to digital inputs.

GENERIC ALARMS AL1, AL2, AL3 and AL4

Alarm setting parameters

Details parameters for setting generic alarms.

Alarm reference variable selection

Alarm setpoint configuration

Sets the threshold values for the alarms.

Alarm hysteresis configuration

GENERIC ALARMS AL1, AL2, AL3 and AL4

Alarm type selection

Configures alarm behavior types.

LBA ALARM (Loop Break Alarm)

LBA alarm configuration

Enables the Loop Break Alarm and sets its parameters.

HB ALARM (Heater Break Alarm)

Heater Break Alarm enabling

Enables the Heater Break Alarm and configures its functions.

Heater Break Alarm setpoints

Sets the setpoints for the Heater Break Alarm.

ALARM SBR - ERR (Probe in short or connection error)

Probe error handling

Configures fault action for probe errors.

Power Fault ALARMS (SSR_SHORT, NO_VOLTAGE, SSR_OPEN and NO_CURRENT)

Power Fault Alarms for GFX4 with 4 TA

Configures power fault alarms for 4 TA models.

Power Fault Alarms for GFX4 with 1 TA

Configures power fault alarms for 1 TA models.

Power Fault ALARMS (SSR_SHORT, NO_VOLTAGE, SSR_OPEN and NO_CURRENT)

Power Fault Alarms for GFXTERMO4 with 4 TA

Configures power fault alarms for GFXTERMO4 4 TA models.

OUTPUTS

Reference signal allocation for outputs

Assigns functions to reference signals for outputs.

Physical output allocation

Assigns functions to physical output channels.

SETPOINT SETTINGS

Local setpoint configuration

Configures the local setpoint value.

Remote setpoint configuration

Sets remote setpoint parameters.

PID HEAT/COOL CONTROL

Heat/Cool control output modes

Describes heat/cool control output configurations.

AUTOMATIC / MANUAL CONTROL

Manual power correction

Allows manual power adjustment based on line voltage.

SELFTUNING

Selftuning activation procedure

Provides steps to activate the selftuning function.

HOT RUNNERS CONTROL

Fault Action Power configuration

Sets power supply during broken probe conditions.

SOFTSTART FOR PREHEATING

Softstart setpoint and power settings

Sets softstart parameters for preheating.

HEATING OUTPUT (Fast cycle)

SSR Control Modes

Describes available SSR control modes.

Heuristic Power Control

HETEROGENEOUS power control

Heterogeneous power control enabling

VIRTUAL INSTRUMENT CONTROL

Virtual instrument control activation

Serial control of inputs and outputs

INSTRUMENT CONFIGURATION SHEET

MODBUS SERIAL NETWORK INSTALLATION

MAIN INPUT PARAMETERS

GENERIC ALARMS AL1, AL2, AL3 e AL4

Reference variable selection for alarms

Alarm type configuration

GENERIC ALARMS AL1, AL2, AL3 e AL4

Probe error alarms (SBR-ERR)

Handles probe short or connection error alarms.

Heater Break Alarm configuration

Configures the Heater Break Alarm and its setpoints.

ALARMS

Power Fault Alarms configuration

PID HEAT/COOL CONTROL

PID parameter settings

Sets PID parameters for heating and cooling.

HOLD FUNCTION

Manual power correction based on voltage

AUTOTUNING

Autotuning process control

SELFTUNING function

SOFTWARE SHUTDOWN

Fault Action Power settings

Power Alarm settings

HEATING OUTPUT (fast cycle)

Heuristic Power Control implementation