CREVIS FnIO G-Series User manual

1MODBUS Programmable I/O GN-9371/2/3 FnIO G-Series
Copyright(C) CREVIS Co.,Ltd Support [phone] URL : www.crevis.co.kr
Version 1.00
2019 CREVIS Co.,Ltd
GN-9371 / 72 / 73
User Manual
MODBUS Programmable I/O

2MODBUS Programmable I/O GN-9371/2/3 FnIO G-Series
Copyright(C) CREVIS Co.,Ltd Support [phone] URL : www.crevis.co.kr
DOCUMENT CHANGE SUMMARY
REV
PAGE
REMARKS
DATE
EDITOR
1.00
109
New Released
2019/04/30
ydsong

3MODBUS Programmable I/O GN-9371/2/3 FnIO G-Series
Copyright(C) CREVIS Co.,Ltd Support [phone] URL : www.crevis.co.kr
CONTENTS
1. Important Notes.......................................................................................................................6
1.1. Safety Instruction........................................................................................................7
1.1.1. Symbols .....................................................................................................................7
1.1.2. Safety Notes...............................................................................................................7
1.1.3. Certifications...............................................................................................................7
2. G-Series System......................................................................................................................8
2.1. Electrical Interface......................................................................................................8
2.2. I/O Process Image Map..............................................................................................9
3. Specification ..........................................................................................................................10
3.1. General Specification ...............................................................................................10
3.2. Interface Specification..............................................................................................11
3.3. GN-9371 / 72 / 73 Ethernet Connection Specification...............................................12
4. Module Description................................................................................................................13
4.1. GN-9371 / 72 / 73 (MODBUS Programmable I/O) ....................................................13
4.2. LED Indicator............................................................................................................14
4.2.2. Module Status LED (MOD).......................................................................................14
4.2.3. Network Status LED (NET).......................................................................................14
4.2.4. PLC Run/Stop Status LED (RUN).............................................................................15
4.2.5. Extension Module Status LED (I/O)..........................................................................15
4.2.6. Field Power Status LED............................................................................................15
4.3. RJ-45 Socket , RS232/485 Port................................................................................16
4.4. Toggle Switch, Push Button......................................................................................16
4.5. RTB Terminal Block..................................................................................................17
4.6. Pin Description.........................................................................................................17
4.7. Dimension (mm).......................................................................................................18
5. Mechanical Setup ..................................................................................................................18
5.1. How to mount on Din-Rail.........................................................................................18
5.2. How to dismount on Din-Rail ....................................................................................18
5.3. Removable Terminal Block (RTB) ............................................................................19
5.4. Method of Wiring. .....................................................................................................19
6. G Series PIO (Programmable I/O) Functions.........................................................................20
6.1. Connection to IO Guide Pro by Modbus RTU *(RS-232 or RS-485) .........................20

4MODBUS Programmable I/O GN-9371/2/3 FnIO G-Series
Copyright(C) CREVIS Co.,Ltd Support [phone] URL : www.crevis.co.kr
6.2. Connection to IO Guide Pro by Modbus TCP ...........................................................22
6.3. Confirmation of Network Information.........................................................................25
6.4. BOOTP / DHCP........................................................................................................27
6.5. Setup IP Address......................................................................................................29
6.6. Serial Communication Settings.................................................................................32
6.7. Memory Reset..........................................................................................................34
6.8. RTC(Real Time Clock) Function...............................................................................35
6.9. Webserver (GN-9371 / 72 / 73).................................................................................36
6.10. IP Default Setting......................................................................................................38
7. Programing the PIO (CODESYS)...........................................................................................39
7.1. Download and Install the CODESYS........................................................................39
7.2. The Basic Configuration CODESYS.........................................................................39
7.2.1. Installation of XML....................................................................................................39
7.2.2. Created Project ........................................................................................................41
7.2.3. CODESYS User Interface.........................................................................................42
7.2.4. Setup I/O..................................................................................................................42
7.3. MODBUS TCP Setting .............................................................................................44
7.3.1. TCP Master Setting..................................................................................................44
7.3.2. TCP Slave Setting....................................................................................................47
7.4. Network Variable......................................................................................................49
7.5. Download and Monitoring.........................................................................................51
7.6. OPC Server (GN-9372 / 73 only)..............................................................................52
7.7. Modbus RTU Master(GN-9371 / 72 / 73)..................................................................56
7.8. Web Visualization (GN-9373 only)............................................................................60
8. File System............................................................................................................................63
8.1. Source download and upload (GN-9372 / 73 only) ...................................................63
9. SNTP.....................................................................................................................................64
10. Event Log...............................................................................................................................65
11. File Transfer (GN-9372 / 73 only)...........................................................................................66
12. .Recipe Manger.......................................................................................................................67
13. Trace Manager.......................................................................................................................71
14. .Breakpoints (GN-9372 / 73 only)............................................................................................73
15. .User DB (ID / PW, GN-9372 / 73 only) ...................................................................................74
16. .Upgrade Firmware .................................................................................................................75
16.1. Using IAP over Ethernet...........................................................................................75

5MODBUS Programmable I/O GN-9371/2/3 FnIO G-Series
Copyright(C) CREVIS Co.,Ltd Support [phone] URL : www.crevis.co.kr
17. .Trouble Shooting....................................................................................................................77
A. How to diagnose by LED indicator............................................................................77
B. How to diagnose when device couldn’t communicate network..................................78
APPENDIX A - MODBUS INTERFACE.........................................................................................79
A.1 MODBUS Interface Register / Bit Map......................................................................79
A.2 MODBUS Transmission Mode..................................................................................79
A.2.1. RTU Transmission Mode.................................................................................................79
A.2.2. ASCII Transmission Mode...............................................................................................80
A.3 Supported MODBUS Function Codes.......................................................................80
A.3.1. 1 (0x01) Read Coils ........................................................................................................80
A.3.2. 2 (0x02) Read Discrete Inputs.........................................................................................81
A.3.3. 3 (0x03) Read Holding Registers ....................................................................................82
A.3.4. 4 (0x04) Read Input Registers.........................................................................................83
A.3.5. 5 (0x05) Write Single Coil................................................................................................84
A.3.6. 6 (0x06) Write Single Register.........................................................................................85
A.3.7. 8 (0x08) Diagnostics .......................................................................................................86
A.3.8. 15 (0x0F) Write Multiple Coils .........................................................................................88
A.3.9. 16 (0x10) Write Multiple Registers...................................................................................89
A.3.10. 23 (0x17) Read/Write Multiple Registers.......................................................................90
A.4 MODBUS Special Register Map...............................................................................91
A.4.1. Adapter Register Mapping...............................................................................................91
A.4.2. Adapter Identification Special Register (0x1000, 4096)...................................................91
A.4.4. Adapter Information Special Register (0x1100, 4352) .....................................................92
A.4.5. Adapter Setting Special Register (0x1600, 5632)............................................................93
A.4.6. Expansion Slot Information Special Register (0x2000, 8192)..........................................94
A.5 Example...................................................................................................................97
A.5.1. Example of Input Process Image(Input Register) Map.....................................................97
A.5.2. Example of Output Process Image(Output Register) Map.............................................100
A.6 MODBUS Reference..............................................................................................101
APPENDIX B - Product List ........................................................................................................102
APPENDIX C –HMI connection example ...................................................................................105
C.1 Beijer HMI Master- PLC Slave(TCP).......................................................................105
C.2 Beijer HMI Master- PLC Slave(RTU) ......................................................................107

6MODBUS Programmable I/O GN-9371/2/3 FnIO G-Series
Copyright(C) CREVIS Co.,Ltd Support [phone] URL : www.crevis.co.kr
1. Important Notes
Solid state equipment has operational characteristics differing from those of electromechanical equipment.
Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls describes some
important differences between solid state equipment and hard-wired electromechanical devices.
Because of this difference, and also because of the wide variety of uses for solid state equipment, all
persons responsible for applying this equipment must satisfy themselves that each intended application of
this equipment is acceptable.
In no event will CREVIS be responsible or liable for indirect or consequential damages resulting from the use
or application of this equipment.
The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many
variables and requirements associated with any particular installation, CREVIS cannot assume responsibility
or liability for actual use based on the examples and diagrams.
If you don’t follow the directions, it could cause a personal injury, damage to the equipment or
explosion
•Do not assemble the products and wire with power applied to the system. Else it may cause an electric
arc, which can result into unexpected and potentially dangerous action by field devices. Arching is
explosion risk in hazardous locations. Be sure that the area is non-hazardous or remove system power
appropriately before assembling or wiring the modules.
•Do not touch any terminal blocks or IO modules when system is running. Else it may cause the unit to
an electric shock or malfunction.
•Keep away from the strange metallic materials not related to the unit and wiring works should be
controlled by the electric expert engineer. Else it may cause the unit to a fire, electric shock or
malfunction.
If you disobey the instructions, there may be possibility of personal injury, damage to equipment
or explosion. Please follow below Instructions.
•Check the rated voltage and terminal array before wiring. Avoid the circumstances over 60℃of
temperature. Avoid placing it directly in the sunlight.
•Avoid the place under circumstances over 90% of humidity.
•Do not place Modules near by the inflammable material. Else it may cause a fire.
•Do not permit any vibration approaching it directly.
•Go through module specification carefully, ensure inputs, output connections are made with the
specifications. Use standard cables for wiring.
•Use Product under pollution degree 2 environment.
Warning!
Caution!

7MODBUS Programmable I/O GN-9371/2/3 FnIO G-Series
Copyright(C) CREVIS Co.,Ltd Support [phone] URL : www.crevis.co.kr
1.1. Safety Instruction
1.1.1. Symbols
Identifies information about practices or circumstances that can cause an explosion
in a hazardous environment, which may lead to personal injury or death property
damage or economic loss.
Identifies information that is critical for successful application and understanding of
the product.
Identifies information about practices or circumstances that can lead to personal
injury, property damage, or economic loss. Attentions help you to identity a hazard,
avoid a hazard, and recognize the consequences.
1.1.2. Safety Notes
The modules are equipped with electronic components that may be destroyed by
electrostatic discharge. When handling the modules, ensure that the environment
(persons, workplace and packing) is well grounded. Avoid touching conductive
components.
1.1.3. Certifications

8MODBUS Programmable I/O GN-9371/2/3 FnIO G-Series
Copyright(C) CREVIS Co.,Ltd Support [phone] URL : www.crevis.co.kr
2. G-Series System
2.1. Electrical Interface
• Network Adapter Module
The Network Adapter Module forms the link between the field bus and the field devices with the Expansion
Modules. The connection to different field bus systems can be established by each of the corresponding
Network Adapter Module, e.g. for MODBUS TCP, Ethernet IP, EtherCAT, PROFINET, CC-Link IE Field,
PROFIBUS, CANopen, DeviceNet, CC-Link, MODBUS/Serial etc.
• Expansion Module
The Expansion Modules are supported a variety of input and output field devices. There are digital and
analog input/output modules and special function modules.
• Two types of Message
Service Messaging / I/O Messaging

9MODBUS Programmable I/O GN-9371/2/3 FnIO G-Series
Copyright(C) CREVIS Co.,Ltd Support [phone] URL : www.crevis.co.kr
2.2. I/O Process Image Map
An expansion module may have 3 types of data as I/O data, configuration parameter and memory
register. The data exchange between network adapter and expansion modules is done via an I/O
process image data by internal-protocol. The following figure shows the data flow of process image
between network adapter and expansion modules.

10 MODBUS Programmable I/O GN-9371/2/3 FnIO G-Series
Copyright(C) CREVIS Co.,Ltd Support [phone] URL : www.crevis.co.kr
3. Specification
3.1. General Specification
General Specification
System Power
Supply Voltage : 24Vdc nominal
Supply Voltage range : 15~32Vdc
Protection : Output current limit (Min. 1.5A) Reverse polarity protection
Power Dissipation
110mA typical @ 24Vdc
Current for I/O Module
1.5A @5Vdc
Isolation
System Power to internal logic : Non-Isolation
System Power I/O driver : Isolation
Field Power
Supply Voltage : 24Vdc typical (Max. 32Vdc)
*Field Power Range is different depending on IO Module series.
Refer to IO Module`s Specification.
Max. Current Field Power Contact
DC 10A Max.
Weight
<167g
Module Size
54mm x 99mm x 70mm
Environment Condition
Operating Temperature
-20℃~ 60℃
UL Temperature
-20℃~ 60℃
Storage Temperature
-40℃~ 85℃
Relative Humidity
5% ~ 90% non-condensing
Mounting
DIN rail
Shock Operating
IEC 60068-2-6
Vibration/shock resistance
Based on IEC 60068-2-6
Sine Vibration
- 10 ~ 25 Hz : 0.5mm
- 50 ~ 150 Hz : 5g
- 150 ~ 1000 Hz : 2g
- Sweep Rate : 1 Oct/min, 50 cycles
Sine Vibration
- 10 ~ 25 Hz : 0.03 g²/Hz
- 25 ~ 50 Hz : 0.05 g²/Hz
- 50 ~ 150 Hz : 0.15 g²/Hz
- 150 ~ 1000 Hz : 0.01 g²/Hz
Test time : 5hrs for each test
EMC resistance burst/ESD
IEC 60068-2-27
EN 61000-6-2 : 2005
EN 61000-6-4/ALL : 2011
Installation Pos. / Protect. Class
Variable / IP20
Product Certifications
UL, CE, RoHS2, FCC, KC

11 MODBUS Programmable I/O GN-9371/2/3 FnIO G-Series
Copyright(C) CREVIS Co.,Ltd Support [phone] URL : www.crevis.co.kr
3.2. Interface Specification
Programmable Specification
Module list
GN-9371
GN-9372
GN-9373
Programming
CODESYS V3.5.11.3
Run-Time System
Multiple PLC Tasks
Program Languages
IEC 61131-3 (LD, IL, ST, FBD, SFC)
Program Memory
512 Kbytes
16 Mbytes
Data Memory
96 Kbytes
16 Mbytes
- I/O Input: %IW0 ~%IW2047 (2048 words)
- I/O Output: %QW0 ~%QW2047 (2048 words)
- Memory: %MW0 ~ %MW8191 (8192 words)
Non-Volatile Memory
4 Kbytes
32 Kbytes
- Retain : 2 Kbytes
- Retain : 16 Kbytes
- Flag : 2 Kbytes
- Flag : 16 Kbytes
OPC-Server
Not Supporting
OPC DA
Online Change
Not Supporting
Supporting
Source Upload/Download
Not Supporting
Supporting
File transmit
Not Supporting
Supporting
Breakpoint
Not Supporting
Supporting
Web Visualization
Not Supporting
only GN-9373
Max. Task
10
Max. Cycle Task
10
Max. Status Task
10
Process Time
(90 Instructions)
1usec
7usec
RTC
Retain Time : < 15 days (Accuracy : < 2min per a month)
Interface Specification
Adapter Type
Master & Slave Node (Modbus TCP, Modbus RTU)
Max. Expansion
63 Slots
Max. Data Size
Max. 128Byte each slot (Input + Output)
Max. Nodes
Limited by Ethernet Specification
Baud rate
10/100Mbps, Auto-negotiation, Full Duplex
Ethernet Interface
RJ-45 socket (x 2pcs)
Ethernet Protocol**
Modbus TCP, Modbus UDP, SNTP
HTTP (Web Visualization*, Web-Server), DHCP/BOOTP, OPC-Server
Max. Socket
24 (UDP: 8, TCP: 16, TCP_LISTEN: 10)
Serial Interface
RS232/RS485 (x 2port, supporting Touch Panel)
Serial Protocol
Modbus RTU (Baud Rate : 2400~115200 bps / Default: 115200 bps)
Indicator
6 LEDs
1 Green/Red, Module Status (MOD)
1 Green/Red, Network Status (NET)
1 Green/Red, PLC Run/Stop Status (RUN)
1 Green/Red, Expansion I/O Module Status (IOS)
1 Green, System Power Status
1 Green, Field Power Status

12 MODBUS Programmable I/O GN-9371/2/3 FnIO G-Series
Copyright(C) CREVIS Co.,Ltd Support [phone] URL : www.crevis.co.kr
3.3. GN-9371 / 72 / 73 Ethernet Connection Specification
Function*
Model
Max. number of concurrent communications
Web Visualization
GN-9373 only
One for each functions are available at the same time.
ARTI (OPC-server)
GN-9372/73
CODESYS link
GN-9371/72/73
Network-Variable
GN-9371/72/73
Modbus/TCP Master
GN-9371/72/73
5 Modbus/TCP Slaves can be connected
Modbus/TCP Slave
GN-9371/72/73
16 Modbus/TCP Masters can be connected
Web-Server
GN-9371/72/73
16 clients can be connected.
* While using these functions, 16 socket are available at the same time.
* GN-9371 is an economic version derived from GN-9372.
* FireFox is recommended for the use of Web Visualization.
* GN-9372/73’s four functions below can work at the same time.
(Web visualization, OPC Server, Network-Variable, and CODESYS link)

13 MODBUS Programmable I/O GN-9371/2/3 FnIO G-Series
Copyright(C) CREVIS Co.,Ltd Support [phone] URL : www.crevis.co.kr
4. Module Description
4.1. GN-9371 / 72 / 73 (MODBUS Programmable I/O)
The modules are not hot swappable.
It means that they should be not removed in power on condition.

14 MODBUS Programmable I/O GN-9371/2/3 FnIO G-Series
Copyright(C) CREVIS Co.,Ltd Support [phone] URL : www.crevis.co.kr
4.2. LED Indicator
4.2.2. Module Status LED (MOD)
State
LED is
To indicate
No Power
Off
No power is supplied to the unit.
Device Operational
Green
The unit is operating in normal condition.
Device in Standby
Blinking Green
The EEPROM parameter is not initialized yet.
Serial Number is zero value (0x00000000)
IAP Mode
Toggle Green/Red
IAP Mode : Available for firmware download using FireFox.
Unrecoverable Fault
Red
The unit has occurred unrecoverable fault in self-testing.
- Firmware fault
*The IP address to access IAP web server during IAP Mode : 192.168.100.10 (Recommended to use FireFox)
4.2.3. Network Status LED (NET)
State
LED is
To indicate
Off-line
Off
Network Offline.
On-line (Connect)
Green
On-line Mode and network is connected.
Error
Red
Network Error
Diagnostic
Blinking Red
Diagnostic Mode
* Blinking MOD & NET LED : BootP/DHCP is requesting the address data for new IP address.
(You can change the IP setting mode. Please refer to this manual in the part of IP set-up.)

15 MODBUS Programmable I/O GN-9371/2/3 FnIO G-Series
Copyright(C) CREVIS Co.,Ltd Support [phone] URL : www.crevis.co.kr
4.2.4. PLC Run/Stop Status LED (RUN)
State
LED is
To indicate
Not Programmed
Off
Power is not supplied or PIO is not programmed
Run
Green
PLC Run
Stop
Blinking Green
PLC Stop
Program Error
Blinking Red
User PLC Program Error
4.2.5. Extension Module Status LED (I/O)
4.2.6. Field Power Status LED
State
LED is
To indicate
Not Powered
No Expansion Module
Off
Device has no expansion module or may not be powered
On-line,
Do not Exchanging I/O
Blinking Green
I/O Communication is normal but does not exchange I/O data.
(Passed the expansion module configuration).
Connection,
Run Exchanging IO
Green
Exchanging I/O data
Connection Fault
during Exchanging IO
Blinking Red
One or more expansion module occurred in fault state.
- Check the expanded module configuration.
- Failed the expanded module communication.
Expansion
Configuration Failed
Red
Failed to initialize expansion module
- Detected invalid expansion module ID.
- Overflowed Input / Output Size
- Oversized expansion module
- Initial protocol failure
- Mismatch vendor code between adapter and I/O module.
State
LED is :
To indicate :
Not Supplied Field Power
Off
Not supplied 24V dc field power.
Supplied Field Power
Green
Supplied 24V dc field power.

16 MODBUS Programmable I/O GN-9371/2/3 FnIO G-Series
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4.3. RJ-45 Socket , RS232/485 Port
4.4. Toggle Switch, Push Button
RJ-45
Signal Name
Description
1
TD+
Transmit +
2
TD-
Transmit -
3
RD+
Receive +
4
-
5
-
6
RD-
Receive -
7
-
8
-
Case
Shield
RS 232/485
Signal Name
Description
1
-
2
TXD
RS232 TXD
3
RXD
RS232 RXD
4
-
5
GND
RS232 GND
6
D+
RS 485 D+
7
-
8
D-
RS485 D-
9
-
Toggle Switch
Status
Module is
Description
UP
RUN
PLC Run
DOWN
STOP
PLC Stop
Push Button
Module is
Description
Press and detach.
Reset
Reset the PLC and then stop.
Push for 5sec and
power Reset
PLC
Reset
Erase PLC user program and
Retain memory
Push for 20sec and
power reset
Factory
default
Erase PLC user program and
PLC parameter reset
Hold down and reset
the power.
IAP mode
Available for firmware download
using FireFox

17 MODBUS Programmable I/O GN-9371/2/3 FnIO G-Series
Copyright(C) CREVIS Co.,Ltd Support [phone] URL : www.crevis.co.kr
4.5. RTB Terminal Block
- System Power: The power for starting up CPU.
- Field Power: The power for input and output line.
Do not use an incorrect voltage/frequency!
The use of an incorrect supply voltage or frequency
can cause severe damage to the component.
4.6. Pin Description
Communication between the Network adapter and the expansion module as well as system / field power
supply of the bus modules is carried out via the internal bus. It is comprised of 6 data pins and 2 field power
pins.
Do not touch data and field power pins in order to
avoid soiling and damage by ESD noise.
To prevent ESD noise, it is recommended to use
the END module.
Pin No.
Signal Description
Signal Description
Pin No.
0
System Power, 24V
System Power, Ground
1
2
System Power, 24V
System Power, Ground
3
4
F.G
F.G
5
6
Field Power, Ground
Field Power, Ground
7
8
Field Power, 24V
Field Power, 24V
9
No.
Name
Description
1
System Vcc
System supply voltage (5V dc).
2
System GND
System Ground.
3
Token Output
Token output port of Processor module.
4
Serial Output
Transmitter output port of Processor module.
5
Serial Input
Receiver input port of Processor module.
6
Reserved
Reserved for bypass Token.
7
Field GND
Field Ground.
8
Field Vcc
Field supply voltage (24Vdc).

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4.7. Dimension (mm)
5. Mechanical Setup
5.1. How to mount on Din-Rail
5.2. How to dismount on Din-Rail
As above figure in order to safeguard the FnIO module from jamming, it should be fixed onto the DIN rail with
locking level. To do so, fold on the upper of the locking lever. To pull out the FnIO module, unfold the locking
lever as above figure.
Before starting the work on the components, the voltage supply must be turned off.

19 MODBUS Programmable I/O GN-9371/2/3 FnIO G-Series
Copyright(C) CREVIS Co.,Ltd Support [phone] URL : www.crevis.co.kr
5.3. Removable Terminal Block (RTB)
5.4. Method of Wiring.
Connecting or removing the cable by pushing the terminal button for the relevant points.
The use of an incorrect supply voltage or frequency can cause severe damage to
the component.

20 MODBUS Programmable I/O GN-9371/2/3 FnIO G-Series
Copyright(C) CREVIS Co.,Ltd Support [phone] URL : www.crevis.co.kr
6. G Series PIO (Programmable I/O) Functions
CREVIS IO Guide Pro is compatible with the PIO(GN-9371/2/3).
The basic parameter set-up and configuration for the PIO is available via the IO Guide Pro.
And user can set up the IPAddress, RTC from the Webserver page,
6.1. Connection to IO Guide Pro by Modbus RTU *(RS-232 or RS-485)
(1) Installation program, ‘IO Guide Pro Tool’ downloaded by CREVIS Webpage (www.crevis.co.kr).
(2) Open the IO Guide and Click the ‘New project’ Icon.
(3) Write the ‘Project Name’, Select the ‘Bus Type’& the ‘Location’and Click the ‘OK’.