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GX-ILM08C
GX-series IO-Link Master Unit
IO-Link makes sensor level information visible and solves the three major issues at manufacturing sites! The unit for M12 Smartclick connector can be used in watery, and dusty environments.
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last update: June 16, 2022
General Specification
| Item | Specification |
|---|---|
| Unit power supply voltage | 20.4 to 26.4 VDC (24 VDC -15%/+10%) |
| I/O power supply | 20.4 to 26.4 VDC (24 VDC -15%/+10%) |
| Noise resistance | Conforms to IEC 61000-4-4, 2 kV (power line). |
| Vibration resistance | 10 to 60 Hz with amplitude of 0.7 mm, 60 to 150 Hz and 50 m/s2 for 80 minutes each in X,
Y, and Z directions |
| Shock resistance | 150 m/s2 with amplitude of 0.7 mm |
| Dielectric strength | 600 VAC (between isolated circuits) |
| Insulation resistance | 20 MΩ min. (between isolated circuits) |
| Ambient operating
temperature |
-10 to 55°C |
| Ambient operating
humidity |
25% to 85% (with no condensation) |
| Ambient operating
atmosphere |
No corrosive gases |
| Altitude | 2,000 m max. |
| Storage temperature | -25 to 65°C |
| Storage humidity | 25% to 85% (with no condensation) |
| Degree of protection | IP67 |
| Mounting | M5 screw mounting |
| Mounting strength | 100 N |
| Communications
connector strength |
30 N |
| Connector types | Connectors for EtherCAT communications: M12 (D-coding, female) × 2
Power supply connector: M12 (A-coding, male) × 1 I/O connectors: M12 (A-coding, female) *1 × 8 |
| Screw tightening torque
*2 |
Round connectors (communications connector, power supply, and I/O): 0.39 to 0.49 N·m
M5 (Unit mounted from the front):1.47 to 1.96 N·m Cover for node address setting switches: 0.4 to 0.6 N·m |
| Applicable standards *3 | UL 61010-2-201, EU: EN 61131-2, RCM, KC, IO-Link conformance, and EtherCAT
conformance |
*1 Confirms to Class A when used as an IO-Link connector.
*2 For SmartClick Connectors, insert the Connector all the way and turn it approx. 1/8 of a turn. Torque management is not
required.
*3 Ask your OMRON representative for the most recent applicable standards for each model.
*2 For SmartClick Connectors, insert the Connector all the way and turn it approx. 1/8 of a turn. Torque management is not
required.
*3 Ask your OMRON representative for the most recent applicable standards for each model.
Unit Specification
| Item | Specification | |
|---|---|---|
| Unit name | IO-Link Master Unit | |
| Model | GX-ILM08C | |
| Number of IO-Link ports | 8 | |
| Communications
specifications |
Communications protocol | IO-Link protocol |
| Baud rate | COM1: 4.8 kbps
COM2: 38.4 kbps COM3: 230.4 kbps |
|
| Topology | 1:1 | |
| Compliant standards | • IO-Link Interface and System Specification Version1.1.2
• IO-Link Test Specification Version1.1.2 |
|
| Device power
supply * in IO-Link Mode or SIO (DI) Mode |
Rated voltage | 24 VDC (20.4 to 26.4 VDC) |
| Maximum load current | 0.2 A/port | |
| Short-circuit protection | Yes | |
| Digital inputs
(in SIO (DI) Mode) |
Internal I/O common | PNP |
| Rated voltage | 24 VDC (20.4 to 26.4 VDC) | |
| Input current | 5 mA typical (at 24 VDC) | |
| ON voltage/ON current | 15 VDC min., 5 mA min. | |
| OFF voltage | 5 VDC max. | |
| Input filter time | No filter, 0.25 ms, 0.5 ms, 1 ms (default), 2 ms, 4 ms, 8 ms, 16 ms,
32 ms, 64 ms, 128 ms, or 256 ms |
|
| Digital outputs
(in SIO (DIO) Mode) |
Internal I/O common | PNP |
| Output type | Push-pull | |
| Rated voltage | 24 VDC (20.4 to 26.4 VDC) | |
| Maximum load current | 0.3 A/port | |
| Short-circuit protection | Provided. | |
| Leakage current | 0.1 mA max. | |
| Residual voltage | 1.5 V max. | |
| Digital inputs for
pin 2 (in IO-Link Mode) |
Internal I/O common | PNP |
| Rated voltage | 24 VDC (20.4 to 26.4 VDC) | |
| Input current | 2 mA (24 VDC) | |
| ON voltage/ON current | 15 VDC min., 2 mA min. | |
| OFF voltage | 5 VDC max. | |
| Input filter time | No filter, 0.25 ms, 0.5 ms, 1 ms (default), 2 ms, 4 ms, 8 ms, 16 ms,
32 ms, 64 ms, 128 ms, or 256 ms |
|
| Cable
specifications |
Cable type | Unshielded |
| Cable length | 20 m max. | |
| Electrostatic capacity
between lines |
3 nF max. | |
| Loop resistance | 6 Ω max. | |
| Dimensions | 175 × 33 × 60 mm (W×H×D) (The height is 49.1 mm when the
connectors are included.) |
|
| Isolation method | Photocoupler isolation | |
| I/O power supply method | Supplied from the power supply connector. | |
| Unit power supply current consumption | 60 mA | |
| I/O power supply current consumption | 100 mA | |
| Weight | 430 g | |
| Circuit layout |  |
|
| Installation orientation and restrictions | Installation orientation: 6 possible orientations
Restrictions: No restrictions |
|
| Protective functions | L+ terminal short-circuit protection
C/Q terminal short-circuit protection |
|
* I/O power supply to devices:
This is the voltage and current value supplied to devices when the communications modes of the ports on the IO-Link
Master Unit are IO-Link Mode or SIO (DI) Mode.
This is the voltage and current value supplied to devices when the communications modes of the ports on the IO-Link
Master Unit are IO-Link Mode or SIO (DI) Mode.
Function Specification
| Function | Description | |
|---|---|---|
| Communications | Cyclic
communications |
I/O data (process data) in the IO-Link devices is cyclically exchanged with the IO-Link Master Unit as the IO-Link communications master.
At the same time, this data and the status of the IO-Link Master Unit is cyclically exchanged with the controller, with the IO-Link Master Unit operating as a slave of the controller. Cyclic communications can be used to check the amount of detection performance deterioration in devices, and to check changes in usage conditions such as the amount of incident light for photoelectric sensors, stability detection margins, and excessive proximity for proximity sensors. |
| Message
communications |
The controller can send messages (commands) to the IO-Link Master Unit and receive the response from the IO-Link Master Unit. The IO-Link Master Unit can also function as a gateway to send messages (commands and responses) between the controller and the IO-Link devices.
Refer to 6-3 Message Communications in the IO-Link System User’s Manual (Cat. No. W568). During operation, you can change and adjust device parameters, such as threshold settings, tuning execution, and ON-delay time changes, from a program. Or, during operation, you can check the internal status, such as the operating times of devices. |
|
| Communications mode settings | You can select any of the following modes for each port:
IO-Link Mode, SIO (DI) Mode, SIO (DO) Mode, and Disable Port This allows you to combine IO-Link communications and digital I/O in a single unit. |
|
| Digital inputs for pin 2 | In IO-Link Mode, you can perform digital input with pin 2 while performing IO-Link communications. | |
| Automatic baud rate setting for
IO-Link communications |
The IO-Link Master Unit automatically matches the specific baud rates (COM1, COM2, or COM3) of the IO-Link devices to communicate with the IO-Link devices.
Therefore, it is not necessary to set the baud rate of the connected device for each port. |
|
| Connected device verification | This function is used to verify the configuration of IO-Link devices that are connected to the IO-Link Master Unit against the registered IO-Link Device Configuration Settings when the power supply is turned ON.
The user can enable or disable connected device verification. |
|
| IO-Link communications error
detection |
This function detects I/O cable breaks, disconnections from IO-Link device ports, error-level device events, device configuration verification errors, and IO-Link device malfunctions. | |
| Detection of short-circuits in I/O
cables |
This function detects short-circuits in I/O cables. | |
| Notification of input data validity | The controller can use the Input Data Enabled Flags to determine whether the process input data for IO-Link communications is valid. | |
| Load rejection for controller
communications error |
This function turns OFF outputs from the IO-Link Master Unit when a communications error occurs in communications with the controller in IO-Link Mode or in an SIO mode.
This prevents incorrect output operations when communications error occurs. |
|
| IO-Link total communications lost
frames |
The IO-Link total communications lost frames can be read from the CX-ConfiguratorFDT.
You can use this function to determine communications status as affected by I/O cable noise or other factors. |
|
| Digital input filter | This function is used to eliminate chattering and noise of the input signal for digital inputs in SIO(DI) Mode or for digital inputs for pin 2 in IO-Link Mode. It prevents data change and stabilizes the input signal even in situations where the input data changes due to chattering or noise and the bit status is unstable. | |
| Digital input collection * | In IO-Link Mode, this function reflects the specified bit data in the input data from the IO-Link device on the digital input data of the IO-Link Master Unit.
As a result, the bit data in the input data from the IO-Link device can be aggregated into the digital input data of the IO-Link Master Unit. One bit for each IO-Link port can be aggregated. This function cannot be used in SIO (DI) Mode and SIO (DO) Mode. If you use this function, digital inputs with pin 2 cannot be used. |
|
| Backup and restoration of
parameter settings in IO-Link devices |
This function is used to back up parameter settings in IO-Link devices in the IO-Link Master Unit or restore them to IO-Link devices.
This eliminates the need to set parameters again after replacing an IO-Link device. |
|
| Event log | This function records events, such as errors and status changes, that occur in the IO-Link Master Unit and IO-Link devices. | |
* This function is supported with the unit version 1.1 or later.
EtherCAT Communications Specifications
| Item | Specification |
|---|---|
| Communications protocol | EtherCAT protocol |
| Modulation | Baseband |
| Baud rate | 100 Mbps |
| Physical layer | 100BASE-TX (IEEE 802.3) |
| Connectors | M12 (D-coding, female) × 2 (shielded)
CN IN: EtherCAT input CN OUT: EtherCAT output |
| Communications media | Category 5 or higher (cable with double, aluminum tape and braided shielding is
recommended.) |
| Communications distance | Distance between nodes (Slave Units): 100 m max. |
| Noise resistance | Conforms to IEC 61000-4-4, 1 kV or higher. |
| Node address setting method | Set on hexadecimal node address switches or with a Configuration Tool. |
| Node address range | 000 to FFF hex (0 to 4,095 decimal): Set on node address switches or with a
Configuration Tool. |
| Indicators | UNIT PWR × 1
IO PWR × 1 L/A IN (Link/Activity IN) × 1 L/A OUT (Link/Activity OUT) × 1 RUN × 1 ERR × 1 |
| Process data | Variable PDO mapping |
| PDO size/node | 2 to 270 bytes |
| Mailbox | Emergency messages, SDO requests, SDO responses, and SDO information |
| Synchronization mode | Free Run Mode (asynchronous) |
Version Information
| GX Unit | Corresponding versions * | |||
|---|---|---|---|---|
| EtherCAT | ||||
| Model | Unit version | CPU Units | Sysmac Studio | CX-ConfiguratorFDT |
| GX-ILM08C | Ver.1.1 | Ver.1.12 or later | Ver.1.20 or higher | Ver.2.2 or higher |
| Ver.1.0 | Ver.1.12 or later | Ver.1.16 or higher | Ver.2.2 or higher | |
* Some Units do not have all of the versions given in the above table. If a Unit does not have the specified version, support
is provided by the oldest available version after the specified version. Refer to the user’s manuals for the specific Units for
the relation between models and versions.
is provided by the oldest available version after the specified version. Refer to the user’s manuals for the specific Units for
the relation between models and versions.
last update: June 16, 2022
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