The OLMs have a compact metal housing. It is suitable for mounting on a standard rail or for wall mounting with a mounting plate.
The 24 V power supply is fed in through a terminal block and can be redundantly connected.
The signaling contact allows a digital signal to be transferred to PLCs or HMI systems for evaluation.
OLMs can be combined with each other and individual stations or complete electrical segments can be integrated into the optical PROFIBUS network through an electrical interface. With the PROFIBUS OLM P22 and OLM G22, two electric PROFIBUS segments can be connected separated from each other.
OLMs are available with one or two fiber optic interfaces with BFOC connectors for different types of fiber optic cables:
- Plastic fiber-optic cables (980/1000 µm) can be used for single lengths of up to 80 m. They can also be assembled with BFOC cable connectors on site.
- PCF fiber-optic cables (200/230 µm) can be used for single lengths of up to 400 m. They are offered preassembled with four BFOC plugs and an insertion tool.
- Glass fiber multimode fiber-optic cables (62.5/125 µm) such as the SIMATIC NET Fiber Optic cables can be used for long distances of up to 3000 m. They must be ordered preassembled with 4 BFOC plugs or as a FastConnect FO system for assembly on site.
- Singlemode fiber-optic cables (10/125 µm or 9/125 µm fibers) can be used for extremely long distances up to 15 km.
Function
- Automatic detection of all PROFIBUS data transmission rates 9.6 Kbit/s to 12 Mbit/s inclusive 45.45 Kbit/s (PROFIBUS PA)
- Construction of the following network topologies: Line, star, redundant ring
- High availability due to media redundancy. The distance between two OLMs in the redundant ring is only limited by the optical range of the modules
- RS485 interface with segment capability (Sub-D female connector)
- Unrestricted multimaster operation: Expanded segmentation functions for localization of faults to fiber optic and RS485 segments
- Fast localization of faults:
- Indication of module status through floating signaling contact
- Checking the fiber optic cable route quality on LEDs
- Checking the fiber optic cable route quality Measurement output for optical receiver for logging and plausibility checking of the fiber optic path attenuation with a voltmeter
- High cascading depth: Line and redundant ring up to 124 OLM (only limited by monitoring times)
Technical data
| Product type designation | PROFIBUS OLM/G22 V4.0 |
| | PROFIBUS OLM/G22 V4.0; Optical Link module with 2 RS485 and 2 glass fiber-optic cable interfaces (4 BFOC sockets) for standard Distances up to 2850 m; with signaling contact and measuring output |
| Transmission rate |
| Transfer rate / with PROFIBUS | 9.6 kbit/s ... 12 Mbit/s |
| Transfer rate / with PROFIBUS PA | 45.45 kbit/s |
| Interfaces |
| Number of electrical/optical connections / for network components or terminal equipment / maximum | 4 |
| Number of electrical connections | |
| ● for network components or terminal equipment | 2 |
| ● for measuring device | 1 |
| ● for signaling contact | 1 |
| ● for power supply | 1 |
| ● for redundant voltage supply | 1 |
| Type of electrical connection | |
| ● for network components or terminal equipment | 9-pin Sub-D socket |
| ● for measuring device | 2-pole terminal block |
| ● for power supply and signaling contact | 5-pole terminal block |
| Number of optical interfaces / for fiber optic cable | 2 |
| Design of the optical interface / for fiber optic cable | BFOC port |
| Optical data |
| Damping ratio / of the FOC transmission link | |
| ● for glass FOC with 50/125 µm / at 3 dB/km / maximum | 10 dB |
| ● for glass FOC with 62.5/125 µm / at 3.5 dB/km / maximum | 12 dB |
| propagation delay [bit] | 6.5 bit |
| Connectable optical power relative to 1 mW | |
| ● for glass FOC with 50/125 µm / at 3 dB/km | -16 dB |
| ● for glass FOC with 62.5/125 µm / at 3.5 dB/km | -13 dB |
| Optical sensitivity relating to 1 mW | |
| ● for glass FOC with 50/125 µm / at 3 dB/km | -28 dB |
| ● for glass FOC with 62.5/125 µm / at 3.5 dB/km | -28 dB |
| Wavelength | |
| ● for glass FOC with 50/125 µm / compatible with interface / at 3 dB/km | 860 nm |
| ● for glass FOC with 62.5/125 µm / compatible with interface / at 3.5 dB/km | 860 nm |
| Wire length | |
| ● for glass FOC with 50/125 µm / at 3 dB/km / maximum | 3 km |
| ● for glass FOC with 62.5/125 µm / at 3.5 dB/km / maximum | 3 km |
| Signal-Inputs/outputs |
| Operating voltage / of the signaling contacts / at DC / Rated value | 24 V |
| Operating current / of the signaling contacts / at DC / maximum | 0.1 A |
| Supply voltage, current consumption, power loss |
| Type of voltage / of the supply voltage | DC |
| Supply voltage / at DC / Rated value | 24 V |
| Supply voltage / at DC | 18.8 ... 28.8 V |
| Product component / fusing at power supply input | Yes |
| Consumed current / at DC / at 24 V / maximum | 0.2 A |
| Permitted ambient conditions |
| Ambient temperature | |
| ● during operation | 0 ... 60 °C |
| ● during storage | -40 ... +70 °C |
| ● during transport | -40 ... +70 °C |
| Relative humidity / at 25 °C / without condensation / during operation / maximum | 95 % |
| Protection class IP | IP40 |
Service Range:
we also do S7-400 PLC, S7-1200 PLC, S7-200 PLC, S7-300, S7-400, ET200, HMI, TOUCH PANEL, TDC, 6ES5, 6ES7, 6DD, controller, CNC
S5-100U,115U,155U PLCs
SIMATIC S7-200,SIMATIC S7-300,SIMATIC S7-400
LOGO , PG,SIMATIC HMI, Wincc
ET200M, ET200S, Profibus
MicroMaster 420, MicroMaster 430, MicroMaster 440 , VFD
, SINAMICS,, G110, G120, drive
