Sequence Of Operations For Starting Up Profibus Boards (Cb1, Cbp, Cbp2) - Siemens SIMOREG DC Master 6RA7028-6DS22 Operating Instructions Manual

Start-Up
7.7.2 Sequence of operations for starting up PROFIBUS boards
(CB1, CBP, CBP2):
Switch off the power supply and insert the board or adapter with board. Please remember to
1
insert a board in location 2 before you use location 3. The new CBP board should be used
instead of the older CB1 board on new installations.
The following are important communication parameters. Index 1 of each parameter is set for
2
st
the 1
U712 PPO type, definition of the number of words in the parameter and process data
-
- U722 Telegram failure time for process data (0 = deactivated)
P918 Bus address
-
P927 Parameterization enable (need only be set if parameters are to be assigned via
-
The process data of the 1
-
appropriate connectors and binectors (see Section 8, function diagrams Z110 and Z111)
For meaning of bits of control and status words, please see Section 8, Sheets G180 to
G183.
Turn the electronics supply voltage off and on again or set U710.001 or U710.002 to "0" to
3
transfer the values of parameters U712, U722 and P918 to the supplementary board.
Note: The initialization process may interrupt the communication link to a supplementary
board which is already operational.
The CB1 (Communication Board 1) or CBP/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. SIMOVIS) 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.
7-20
communication board (1
section of the telegram (required only if the PPO type cannot be set via PROFIBUS-
DP master)
The DP master configuring data determine whether the slave (CB1, CBP, 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 SIMOREG converter. The latter can monitor the process data as a
function of U722 and activate fault message F082.
PROFIBUS)
st
or 2
st
CB) and index 2 for the 2
nd
communication board are connected by means of the
nd
communication board (2
SIEMENS AG
SIMOREG DC Master Operating Instructions
02.00
nd
CB):
6RX1700-0AD76