Chapter 3 Function List - Mitsubishi Electric RJ71PB91V-U-IN-E User Manual

3
FUNCTION LIST
The following table lists the functions of the RJ71PB91V. For details on the functions, refer to the following.
 MELSEC iQ-R PROFIBUS-DP Module User's Manual (Application)
Function
PROFIBUS- Data exchange function
DPV0
Acquisition of diagnostic
information and extended
diagnostic information
Global control function
PROFIBUS- Acyclic communication
DPV1 function
Alarm acquisition function
PROFIBUS- Time control over DP-Slaves
DPV2
Data swap function
Data consistency function
Output status setting function for CPU stop error
Temporarily reserved station specification
function
Mode changing function
3 FUNCTION LIST
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Description
Performs data exchange of up to 8192 bytes by connecting up to 125 DP-Slaves to one RJ71PB91V.
Acquires the diagnostic information and the extended diagnostic error information occurring in DP-Slaves
during data exchange using buffer memory and I/O signals, facilitates.
Sends service (SYNC, UNSYNC, FREEZE, UNFREEZE) to each DP-Slave in a group, and synchronously
controls I/O data of DP-Slaves.
Reads/writes data from/to DP-Slaves at a different timing from the data exchange.
Acquires up to eight items of the alarm or status information occurring in a DP-Slave.
Sets the time of each DP-Slave by operating RJ71PB91V as a time master.
Swaps upper and lower bytes in units of words when I/O data is sent/received.
Maintains consistency of I/O data of DP-Slaves when it is read/written from/to the buffer memory.
Sets whether to stop or continue the data exchange with DP-Slaves when a CPU stop error occurs in the
CPU module to which the RJ71PB91V is mounted.
Temporarily changes a DP-Slave to a reserved station without changing slave parameters of PROFIBUS
Configuration Tool.
Changes the operation mode using PROFIBUS Configuration Tool or a program.