Installation and connection
Installation
Note
For dimensions, (see Dimensions).
Fasten the module with 2 M6 screws and a maximum tightening torque of 3 Nm the mounting holes (see Device overview).
Electrical connection
Requirements for complying with the protection classes
For complying with the protection class (see Ambient conditions), all plugs and caps must be properly connected and the tightening torque of 0.6 Nm must be observed (see data sheets of connectors and caps).
Power supply
Note
NOTICE
Unwanted voltage dips
Non-separated electric circuits of the power supplies for sensor and actuator can lead to unwanted voltage dips of the sensor supply when switching actuators.
Fuse the power supplies for sensors and actuators separately.
Make sure that the power supply of the device is sufficiently dimensioned to cover start-up and peak currents and design the fuse protection concept accordingly.
Note
Power supply of sensor/bus and actuator may only be established via a separate power source.
The total current for the sensor and actuator supply must not exceed 16 A each.
The external circuits that are connected to this device must be disconnected from the mains voltage or dangerous voltage by reinforced or double insulation and must satisfy the requirements of SELV/PELV (Class III).
For UL: Observe cable requirements and power supply requirements (see UL Requirements)!
Note
Only for BNI XG1-505-0A5-R067 : Outputs are supplied via US.
The actuator supply UA is only looped through, nothing on the circuit board is supplied by UA (UA diagnostics are nevertheless available).
Top view of M12 plug (left) and socket (right)
| Power IN | Power OUT |
| M12 plug (L-coded, with FE) | M12 socket (L-coded, with FE) |
|
|
Pin assignment
| Pin | Signal | Description | |
| BNI XG...-302/505/508-… | BNI XG...-538-… | ||
| 1 | L+ (US+) | Module/sensor supply +24 V | |
| 2 | 2L− (UA−) | Electrical ground 0 V | Separate power supply (−) |
| 3 | L− (US−) | Electrical ground 0 V | |
| 4 | 2L+ (UA+) | Actuator supply +24 V | Separate power supply (+) |
| 5 | FE | Functional earth | |
Note
Only for BNI XG1-505-0A5-R067 : Outputs are supplied via US.
The actuator supply UA is only looped through, nothing on the circuit board is supplied by UA (UA diagnostics are nevertheless available).
Note
Only for BNI XG5-538-…: Pin 2 and Pin 3 are galvanically separated.
Ethernet interface
| Pin | Signal | Description |
| 1 | Tx+ | Transmit Data + |
| 2 | Rx+ | Receive Data + |
| 3 | Tx− | Transmit Data − |
| 4 | Rx− | Receive Data − |
I/O-Port
Pin assignment BNI XG1-505-0A5-R067
| Pin | Signal | |||
| Class A | ||||
| 1 | L+ (US+) | +24 V, 0,5 A | ||
| 2 | I (DI) | Input | ||
| 3 | L− (US−) | Electrical ground 0 V | ||
| 4 | C/Q (SIO/IO-Link) | Input / Output (0,25 A) / IO-Link | ||
| 5 | n. c. | |||
Pin assignment BNI XG3-302-…-…
| Pin | Signal | |||
| 1 | L+ (US+) | +24 V, 2 A | ||
| 2 | I/O (DI/DO) | Input / Output (2 A) | ||
| 3 | L− (US−) | Electrical ground 0 V | ||
| 4 | I/O (DI/DO) | Input / Output (2 A) | ||
| 5 | n. c. | |||
Pin assignment BNI XG3-508-…-…
| Pin | Signal | |||
| Class A | ||||
| 1 | L+ (US+) | +24 V, 2 A | ||
| 2 | I/O (DI/DO) | Input / Output (2 A) | ||
| 3 | L− (US−) | Electrical ground 0 V | ||
| 4 | C/Q (SIO/IO-Link) | Input / Output (2 A) / IO-Link | ||
| 5 | n. c. | |||
Pin assignment BNI XG5-…-…-…
| Pin | Signal | |||
| Class A | Class B | |||
| 1 | L+ (US+) | +24 V, 2 A | L+ (US+) | +24 V, 2 A |
| 2 | I/O (DI/DO) | Input / Output (4 A)1) | 2L+ (UA+) | P24 (4 A)1), 2) |
| 3 | L− (US−) | Electrical ground 0 V | L− (US−) | Electrical ground 0 V |
| 4 | C/Q (SIO/IO-Link) | Input / Output (2 A)3) / IO-Link | C/Q (SIO/IO-Link) | Input/Output (2 A)3) / IO-Link |
| 5 | n. c. | 2L− (UA−) | N24 (Electrical ground 0 V) | |
|
1)adjustable to 1 A, 2 A, 3 A and 4 A (from FW 1.2) taking into account the total current of 16 A and the maximum total current of 4 A on the electronic ground of a port 2)with switching option 3)adjustable to 1 A and 2 A (from FW 1.2) taking into account the total current of 16 A and the maximum total current of 4 A on the electronic ground of a port |
||||
Overview
| Variant | I/O-Port | IO-Link Port | |
| - | - | Class A | Class B |
| BNI XG1-505-0A5-R067 | - | 1...8 | – |
| BNI XG3-302-0B5-R067 | 1...8 | – | – |
| BNI XG3-302-1B5-Z067 | 1...8 | – | – |
| BNI XG3-508-0B5-R067 | – | 1…8 | – |
| BNI XG5-508-0B5-P067 | – | 1…8 | – |
| BNI XG5-508-0B5-R067 | – | 1…8 | – |
| BNI XG5-538-0B5-R067 | – | 1…4 | 5…8 |
| BNI XG5-508-1B5-Z067 | – | 1…8 | – |
| BNI XG5-538-1B5-Z067 | – | 1…4 | 5…8 |
Note
For the digital sensor inputs, see the directive on inputs EN 61131-2, type 3.
The total current of the outputs must not exceed the total current of the module of 16 A.
Unused ports must be covered with caps to ensure compliance with the protection class (see Ambient conditions).
Daisy chain: If BNI XG5-538-… master and BNI XG3/XG5-302/508-… or BNI XG1-505-… master are used in a line, it must be ensured that the galvanic isolation is removed. BNI XG3/XG5-302/508-… and BNI XG1-505-… masters connect both earth potentials. A BNI XG5-538-… master in the same line is then no longer galvanically electrically supplied!
Only for BNI XG1-505-0A5-R067: All IO-Link outputs are supplied via the sensor voltage (US).
Only for BNI XG…-302/508-… : All outputs are supplied via the actuator supply (UA).
Only for BNI XG5-538-… :
If the separate power supply 2L+ is removed, the Class A outputs (Port 1…4) are deactivated.
With a separate galvanic supply, the correct reference potential must be used as the input signal, as inputs on pin 2 have a reference to pin 5. If US is used as the input signal, this results in undefined behavior.
All outputs on the upper ports (ports 1…4) and the outputs on pin 4 on the lower ports (ports 5…8) are supplied by US. Only the outputs of pin 2 on the lower ports are supplied via UA. In order to emulate the behavior of the 508 master, there is currently a software switch-off of the pin 2 outputs when UA drops out.
The master can also be used without galvanic isolation, in which case it behaves like a 508 master (also due to the software shutdown).
Note
Please check whether IO-Link is supported by your module before using this function. For more information on product variants that support IO-Link, see Supported product variants
Grounding
To counteract EMC interference, the functional earth connection must be used.
Connect the earth terminal to the functional earth (FE) of the machine.
Note
The FE connection between the housing and the machine must have a low impedance and be as short as possible.
► Use the grounding strap included in the scope of delivery (tightening torque: 1.1…1.2 Nm).
Cable routing
Cable length
The Ethernet cable may be max. 100 meters long.
The IO-Link cable may be max. 20 meters long.
The standard IO cable may be max. 30 meters long.
Use in combination with safety modules (BNI XG5-538-… only)
These products are remote fieldbus modules with four Class A ports and four Class B ports (per IEC 61131-9).
Note
The Class A ports and Pins 1,3 and 4 on the Class B ports are not suitable for use in safety applications.
Product description
| Description | Order code | Class A-Ports | Class B-Ports |
| BNI XG5-538-0B5-R067 | BNI00KJ | 4 | 4 |
| BNI XG5-538-1B5-Z067 | BNI00K7 | 4 | 4 |
Port overview and pinning
| Port type | Connector diagramm | Pinning | Remarks | ||
| Class A (Ports 0…4) |
|
1 | L+ (US+) | +24 V, 2 A | In this type the functions of Pins 2 and 5 are not specified. Pin 2 is usually connected to another digital channel. |
| 2 | I/O (DI/DO) | Input / Output (4 A) | |||
| 3 | L− (US−) | Electrical ground 0 V | |||
| 4 | C/Q (SIO/IO-Link) | Input / Output (2 A) / IO-Link | |||
| 5 | n. c. | ||||
| Class B (Ports 5…7) |
|
1 | L+ (US+) | +24 V, 2 A | This type provides an additional supply voltage and is suitable for connecting devices which have a higher current requirement. Here pins 2 and 5 provide an additional (galvanically isolated) supply voltage. |
| 2 | 2L+ (UA+) | P24 (4 A) | |||
| 3 | L− (US−) | Electrical ground 0 V | |||
| 4 | C/Q (SIO/IO-Link) | Input/Output (2 A) / IO-Link | |||
| 5 | 2L− (UA−) | N24 (Electrical ground 0 V) | |||
Note
The pin configuration and diagnostics for devices with Class B properties are identical to the configuration described in these instructions.
By maintaining all the specifications in the corresponding user’s guide and safety instructions Pins 2 and 5 of the Class B port on these modules can be safety switched off using a higher level safety logic (e.g. safety relay). The devices are therefore suitable for turning off actuators which are powered solely by these pins for use in safety applications.
Safety function
The safe state of the Class B ports is no voltage on Pins 2 and 5. Turn-off must be done by the higher level safety logic (externally).
The fieldbus modules are constructed internally so that because of fault exclusions (see DIN EN ISO 13849-2) no external voltages can reach the galvanically isolated Pins 2 and 5 on the Class B port. This applies both to the IO-Link interface communication and for the external voltage supplies. The modules do not have their own safety logic or safety diagnostics.
Note
Turning off actuators over the IO-Link interface is not suitable for safety functions within the safety chain.
The actuators must be suitable for this type of safe turn-off and must if appropriate also habe galvanic isolation.
Accordingly the actuator-voltage supplies must be configured according to the principles of safe (potential-) isolation in order to prevent cross fault (per EN.IEC 60204-1, DIN EN ISO 13849-2). Within the safety chain of the safety application both potentials (24 V and 0 V) of the actuator-voltage supplies must always be isolated using the higher level safety logic.
Note
The use of power supplies other than SELV/PELV can result in a hazard to the user and compromising of the functional safety.
Example of an application description
The safety function of the safe turn-off is implemented for example using the following signal chain: Safe switches/sensors (e.g. E-Stop) – safety logic (e.g. safety relay – fieldbus module with Class B ports – actuator(s). All elements must be suitable for use in the implemented safety function.
When the safe switch/sensor (e.g. E-Stop) is actuated, Pins 2 and 5 on the Class B ports are safely isolated from the supply voltage (two-pin) by the safety logic and switched potential-free.
The voltage supplies US/UA provide power to the Class A and Class B ports of the module galvanically isolated and independent of each other:
Segment assignment for the voltage supplies
| Description | Order code | Signal |
Class A
Port 0, 1, 2, 3 |
Class B
Port 4, 5, 6, 7 |
|
BNI XG5-538-0B5-R067 /
BNI XG5-538-1B5-Z067 |
BNI00KJ / BNI00K7 |
US
(24 V/GND) |
Pins 1, 3
Pins 2, 4 1) |
Pins 1, 3, 4 |
|
UA
(P24/N24) |
Pins 2, 5 | |||
| 1) When UA is turned off the Class A outputs are also deactivated via software (not safe). | ||||
Inspections
The inspection interval for the function test of the safety function to be documented turning off the actuator-voltage(s) depends on the requirements for the safety function of the higher level system, but must be performed no later than every 12 months.
Note
It is recommended that the inspection be automatically carried out by the higher level system. If this is not possible, we recommend automatically providing the user with a reminder for the inspection. If this is not possible either, performance of the inspection must be specified in the process instructions for the higher level system.