Sequence Of Operations For Starting Up Profibus Board (Cbp2) - Siemens Simovert 6SE70 Series Operating Instructions Manual

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Start-Up
4.5.2 Sequence of operations for starting up PROFIBUS board
(CBP2):
Switch off the power supply and insert the board or adapter with board. For installation details see
1
Section 9.1, Options for integration into the electronics box.
The following are important communication parameters:
2
- P697 PPO type, definition of the number of words in the parameter and process data section of the
telegram (required only if the PPO type cannot be set via PROFIBUS-DP master)
- P695 Telegram failure time for process data (0 = deactivated)
The DP master configuring data determine whether the slave (CBP2) must monitor telegram
traffic with the master. If this monitoring function is activated, the DP master passes a time
value (watchdog time) to the slave when the link is set up. If no data are exchanged within this
period, the slave terminates the process data exchange with the SIMOVERT 6SE70. The latter
can monitor the process data as a function of P695 and activate fault message F082
- P918 Busadresse
- P053 Parameterization enable (same function as P927; need only be set if parameters are to be
assigned via PROFIBUS)
- P090 or P091 for logging the board
The connections for the process data on the communications board are made using the corresponding
source and target parameters (see Section 4.3). For the meaning of the bits in the control words and the
status words, see Section 4.3.
Switching off and on of the electronics supply voltage. Doing this causes the values of parameters P695,
3
P697 and P918 to be transferred from the supplementary
The CBP2 (Communication Board PROFIBUS) serves to link drives and higher-level automation systems via
the PROFIBUS-DP. For the purpose of PROFIBUS, it is necessary to distinguish between master and slave
converters.
Masters control the data traffic via the bus and are also referred to as active nodes . There are two
classes of master:
DP masters of class 1 (DPM1) are central stations (e.g. SIMATIC S5, SIMATIC S7 or SIMADYN D)
which exchange data with slaves in predefined message cycles.
DPM1s support both a cyclic channel (transmission of process data and parameter data) and an acyclic
channel (transmission of parameter data and diagnostic data).
DP masters of class 2 (DPM2) are programming, configuring or operator control/visualization devices
(e.g. DriveMonitor) which are used in operation to configure, start up or monitor the installation.
DPM2s support only an acyclic channel for transferring parameter data.
The contents of the data frames transferred via these channels are identical to the structure of the
parameter section (PKW) as defined by the USS specification.
4-54
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Operating Instructions