Hirschmann Interface Converter 943727-321

Hirschmann Interface Converter 943727-321

Order Numbers
OZD Profi 12M P11            943 728-221
OZD Profi 12M P12            943 728-321
OZD Profi 12M G11            943 727-221
OZD Profi 12M G12            943 727-321
OZD Profi 12M G12-EEC        943 730-321
OZD Profi 12M G11-1300       943 729-221
OZD Profi 12M G12-1300       943 729-321
OZD Profi 12M G12-1300 EEC   943 256-321

The PROFIBUS Repeaters OZD Profi 12M …
·OZD Profi 12M P11,
·OZD Profi 12M P12,
·OZD Profi 12M G11,
·OZD Profi 12M G12,
·OZD Profi 12M G12 EEC,
·OZD Profi 12M G11-1300,
·OZD Profi 12M G12-1300 and
OZD Profi 12M G12-1300 EEC are designed to be used in optical PROFIBUS field bus networks. They enable electrical PROFIBUS interfaces (RS 485 level) to be converted into optical PROFIBUS interfaces and vice-versa.

Table 1, p. 6 shows the different methods for connecting the modules, and the maximum optical ranges of each port.
By profiting from the familiar advantages of opticaltransmission technology, the modules can be integrated into existing PROFIBUS field bus networks.

A complete PROFIBUS field bus network with modules in line, star or ring topology, and an arbitrary combination of these, can also be built up

The redundant ring is also supported, thereby increasing the fail-safety of the field bus network.
Each module has two or three mutually independent ports, which in turn consist of a transmitting and a receiving component.
The device is powered by 24V DC voltage. A redundant feed increases operational safety.

The electric port is a 9-pole Sub-D socket (female). An RS 485 bus segment in line with the PROFIBUS standard EN 50170 can be connected to this port.

Hirschmann Interface Converter 943727-321

Transmission rate
The OZD Profi 12M … support all the transmission speeds (transmission rates) defined in the EN 50170 standard:
9.6 kBit/s, 19.2 kBit/s, 45.45 kBit/s, 93.75 kBit/s,
187.5 kBit/s and 500 kBit/s,
and additionally
1.5 MBit/s, 3 MBit/s, 6 MBit/s and 12 MBit/s.
The transmission rate is set automatically as soon as the OZD Profi 12M … receives a frame. The setting or adjustment is dependent on the transmission rate and the set operating mode. Depending on the OZD Profi 12M … ,this can last up to several seconds.
If the transmission speed has not been recognized, the outputs of all ports are blocked. If the transmission rate changes during operation, this is detected by the modules, which then automatically adjust their settings accordingly.
Transfer malfunctions may temporarily occur while the rate is being altered.
Signal regeneration
The modules regenerate the signal form and amplitude of the data received. This allows up to 122 OZD Profi 12M … to be cascaded (limited by the address space in PROFIBUS networks).
Help when setting up
At least one bus subscriber must be switched on and active in order to check the optical fiber connections during the installation. This bus subscriber serves as the frame source. The OZD Profi 12M … act passively when it is switched on. They recognize the transfer speed from the frames sent by the bus subscriber. An optical help when putting the device into operation is provided by the port LED which then lights up.
Hirschmann Interface Converter 943727-321