The bus coupler with integrated I/Os is intended for use within a Modbus RTU/ASCII network and represents the link to the Inline I/O system. Up to 61 Inline devices can be connected to the bus coupler. The bus coupler supports a maximum of 8 PCP devices.
IL MOD BK DI8 DO4-PAC
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Bus coupler
2878696
Inline, Bus coupler, Modbus/RTU, D-SUB-9 female connector, Digital inputs: 8, 24 V DC, connection technology: 3-conductor, Digital outputs: 4, 24 V DC, 500 mA, connection technology: 3-conductor, transmission speed in the local bus: 500 kbps / 2 Mbps, degree of protection: IP20, including inline connectors, marking fields, and end plate
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Product details
| Dimensional drawing |
|
| Width | 80 mm |
| Height | 119.8 mm |
| Depth | 71.5 mm |
| Note on dimensions | Specfications with connectors |
| Note on application | |
| Note on application | Only for industrial use |
| Utilization restriction | |
| CCCex note | Use in potentially explosive areas is not permitted in China. |
| Modbus/RTU | |
| Number of interfaces | 1 |
| Connection method | D-SUB-9 female connector |
| Note on the connection method | Electrically isolated supply, shielding directly connected to functional ground |
| Transmission speed | 1.2 kBit/s ... 115.2 kBit/s (can be parameterized) |
| Inline local bus | |
| Number of interfaces | 1 |
| Connection method | Inline data jumper |
| Transmission speed | 500 kbps / 2 Mbps (automatic detection, no combined system) |
| System limits | |
| Number of supported devices | max. 63 (per station) |
| Number of local bus devices that can be connected | max. 61 (The on-board I/Os are two devices) |
| Number of devices with parameter channel | max. 8 |
| Number of supported branch terminals with remote bus branch | 0 |
| Module | |
| ID code (hex) | none |
| Input address area | 8 bit |
| Output address area | 4 bit |
| Register length | 16 bit |
| Digital: | |
| Input name | Digital inputs |
| Description of the input | EN 61131-2 type 1 |
| Number of inputs | 8 |
| Connection method | Inline connector |
| Connection technology | 3-conductor |
| Input voltage | 24 V DC |
| Input voltage range "0" signal | -30 V DC ... 5 V DC |
| Input voltage range "1" signal | 15 V DC ... 30 V DC |
| Nominal input voltage UIN | 24 V DC |
| Nominal input current at UIN | typ. 3 mA |
| Typical input current per channel | typ. 3 mA |
| Typical response time | approx. 500 µs |
| Delay at signal change from 0 to 1 | 1.2 ms |
| Delay at signal change from 1 to 0 | 1.2 ms |
| Digital: | |
| Output name | Digital outputs |
| Connection method | Inline connector |
| Connection technology | 3-conductor |
| Number of outputs | 4 |
| Protective circuit | Short-circuit and overload protection; Freewheeling circuit in the output driver |
| Output voltage | 24 V DC -1 V (At nominal current) |
| Maximum output current per module | max. 2 A |
| Nominal output voltage | 24 V DC |
| Output current when switched off | max. 10 µA (When not loaded, a voltage can be measured even at an output that is not set.) |
| Nominal load, inductive | 12 VA (1.2 H, 48 Ω) |
| Nominal load, lamp | 12 W |
| Nominal load, ohmic | 12 W |
| Reverse voltage resistance to short pulses | Reverse voltage proof |
| Behavior with overload | Auto restart |
| Behavior with inductive overload | Output can be destroyed |
| Behavior at voltage switch-off | The output follows the power supply without delay |
| Signal delay | typ. 1.2 ms |
| Overcurrent shut-down | min. 0.7 A |
| Product type | I/O component |
| Product family | Inline |
| Type | modular |
| Scope of supply | including inline connectors, marking fields, and end plate |
| No. of channels | 12 |
| Diagnostics messages | Short-circuit or overload of the digital outputs yes |
| Sensor supply failure yes | |
| Failure of the actuator supply yes | |
| Insulation characteristics | |
| Overvoltage category | II (IEC 60664-1, EN 60664-1) |
| Pollution degree | 2 (IEC 60664-1, EN 60664-1) |
| Maximum power dissipation for nominal condition | 5.3 W |
| Potentials: Bus coupler supply UBK; Communications power UL (7.5 V) and the analog supply UANA (24 V) are generated from the bus coupler supply. | |
| Supply voltage | 24 V DC (via Inline connector) |
| Supply voltage range | 19.2 V DC ... 30 V DC (including all tolerances, including ripple) |
| Current draw | max. 0.94 A (with max. number of connected I/O terminal blocks) |
| typ. 40 mA (without connected I/O terminal blocks) | |
| Potentials: Communications power (UL) | |
| Supply voltage | 7.5 V DC |
| Potentials: Supply of analog modules (UANA) | |
| Supply voltage | 24 V DC |
| Supply voltage range | 19.2 V DC ... 30 V DC (including all tolerances, including ripple) |
| Potentials: Main circuit supply (UM) | |
| Supply voltage | 24 V DC (via Inline connector) |
| Supply voltage range | 19.2 V DC ... 30 V DC (including all tolerances, including ripple) |
| Current draw | max. 8 A DC |
| min. 3 mA (without connected peripherals) | |
| Potentials: Segment circuit supply (US) | |
| Supply voltage | 24 V DC (via Inline connector) |
| Supply voltage range | 19.2 V DC ... 30 V DC (including all tolerances, including ripple) |
| Current draw | max. 8 A DC |
| min. 3 mA (without connected peripherals) | |
| Electrical isolation/isolation of the voltage ranges | |
| Test voltage: Modbus interface 1 / Modbus interface 2 | 500 V AC, 50 Hz, 1 min |
| Test voltage: Modbus interface 1 / communications power (UBK, UL, UANA) | 500 V AC, 50 Hz, 1 min |
| Test voltage: Modbus interface 1 / I/O (UM, US) | 500 V AC, 50 Hz, 1 min |
| Test voltage: Modbus interface 1 / functional ground | 500 V AC, 50 Hz, 1 min |
| Test voltage: Modbus interface 2 / communications power (UBK, UL, UANA) | 500 V AC, 50 Hz, 1 min |
| Test voltage: Modbus interface 2 / I/O (UM, US) | 500 V AC, 50 Hz, 1 min |
| Test voltage: Modbus interface 2 / functional ground | 500 V AC, 50 Hz, 1 min |
| Test voltage: Communications power (UBK, UL, UANA) / I/O (UM, US) | 500 V AC, 50 Hz, 1 min |
| Test voltage: Communications power (UBK, UL, UANA) / functional ground | 500 V AC, 50 Hz, 1 min |
| Test voltage: I/O (UM, US) / functional ground | 500 V AC, 50 Hz, 1 min |
| Connection technology | |
| Connection name | Inline connector |
| Conductor connection | |
| Connection method | Spring-cage connection |
| Conductor cross section rigid | 0.08 mm² ... 1.5 mm² |
| Conductor cross section flexible | 0.08 mm² ... 1.5 mm² |
| Conductor cross section AWG | 28 ... 16 |
| Stripping length | 8 mm |
| Inline connector | |
| Connection method | Spring-cage connection |
| Conductor cross section, rigid | 0.08 mm² ... 1.5 mm² |
| Conductor cross section, flexible | 0.08 mm² ... 1.5 mm² |
| Conductor cross section AWG | 28 ... 16 |
| Stripping length | 8 mm |
| Ambient conditions | |
| Ambient temperature (operation) | -25 °C ... 60 °C |
| Degree of protection | IP20 |
| Air pressure (operation) | 70 kPa ... 106 kPa (up to 3000 m above sea level) |
| Air pressure (storage/transport) | 70 kPa ... 106 kPa (up to 3000 m above sea level) |
| Ambient temperature (storage/transport) | -40 °C ... 85 °C |
| Permissible humidity (operation) | 10 % ... 95 % (non-condensing) |
| Permissible humidity (storage/transport) | 10 % ... 95 % (non-condensing) |
| Protection class | III (IEC 61140, EN 61140, VDE 0140-1) |
| Mounting type | DIN rail mounting |
DNV GL
Approval ID: TAA00001KVBV
Approval ID: 21595/C0 BVABS
Approval ID: 22-2226444-PDAcULus Recognized
Approval ID: E140324LR
Approval ID: LR23398855TA
Your advantages
Modbus connection via 9-pos. D-SUB socket
Electrical isolation between Modbus interface and logic
8 digital inputs, 4 digital outputs (on-board)
Data transmission speed in Modbus of 1.2 kbps to 115.2 kbps (configurable)
Rotary coding switches for setting the Modbus address and for configuration
Supported Modbus addresses from 1 to 99
Automatic detection of the transmission speed in the local bus (500 kbps or 2 Mbps)
Shipbuilding and UL approvals