MSA SUPREMATouch MCP 20, Руководство по эксплуатации

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Installation
GB
SUPREMATouch
SUPREMA CAN Bridge CBM
If a satellite is operated with a cable length > 20 metres, a SUPREMA CAN BRIDGE CBM must
be provided. It is necessary for galvanic isolation, the matching of bit rates and the filtering of CAN
Identifiers (data reduction).
Fig. 90 SUPREMA CAN-Bridge CBM
The SUPREMA CAN BRIDGE is supplied with 24 V DC (X101). The CAN bus of the Basic Rack
is connected to NET 0 (X400), and the satellite rack is connected to NET1 (X400) (Exact connec-
tion assignments are to be seen from the CAN Bridge hardware manual).
For parameter setting, a serial interface (DSUB plug connector X100) is provided. The CAN
Bridge parameters can be set using the "CAN bridge calculator" function of the SUPREMA
Manager.
The code switches SW211 and SW210 of the CAN Bridge are only for internal service purposes
and must always be in position 0. When both LEDs (1 and 2) are on the status is ‘good‘. If there
is a failure at one of the two CAN buses, the corresponding LED will flash, LED 1 for NET 1, and
LED 2 for NET 0.
To be considered for the correct function of the SUPREMA CAN bridge:
• Baud rate setting at the Central Rack (depends on the number of measuring points)
• Baud rate setting at the satellite rack (depends on the distance of the satellite)
• Rack number (DIP switch at the MIB module)
• Components of the Satellite racks (Plug positions of the MGO, MAO, MAI/MAR, MGI/MGR
modules)
• If more than one rack is connected and at least one of those racks is operated outside of the
electrical cabinet, the CAN bridge calculator function of the SUPREMA Manager software must
be used to calculate the necessary reduction in Baud rate depending on the distance in meters.
Baud rate setting at the Central Rack
32 filters max. may be set, i.e., in a satellite,15 MGO/MAO or 10 MAI modules max. can
be integrated.
Measuring points Bit rate setting in kbit/s
Simplex/Duplex
1–256
250