Yaskawa V7 PROFIBUS-DP - Manual (Page 36)

Network Communications 3-8
‹ Fast I/O Input Data
The fast I/O input data area is used to transfer parameter data directly from the drive via a dual port RAM interface. The following table
details the functions of the fast I/O input data (Bytes 0 to 3) For detailed explanation of the terminal and multi-function inputs and outputs,
refer to the V7 Technical Manual.
Table 3.9 – 6 Word input/Output Message Fast I/O Input Data
Fast I/O Input Data (V7 -> PROFIBUS-DP Master )
Byte Function Bit Note
0 Running
1 @ Zero Speed
2 @ Reverse
3 Reset Signal
4 @ Frequency Agree
5 Drive Ready (Rdy)
6 Minor Fault
0
7 Major Fault
8 OPE Error
9 Fault Restart
10 Local/Remote
11 Multi-function Output 1 1 = Close (terminal function dependent on setting of parameter n057)
12 Multi-function Output 2 1 = Close (terminal function dependent on setting of parameter n058)
13 Multi-function Output 3 1 = Close (terminal function dependent on setting of parameter n059)
14 Reserved
1
Drive
Status
15 Reserved
2 Frequency Reference MSB
3
Frequency
Reference
Frequency Reference LSB
0.01Hz
scaling is dependent on the setting of parameter n035
‹ Parameter Access Area
This area is used to read and write parameter data from and to the drive. The PROFIBUS-DP Master completes the Parameter Access
command (output) message and waits for and then processes the data returned in the response (input) message. These messages may
contain 1 - 4 words of data. The handshaking byte is used to synchronize the communications between the PROFIBUS-DP Master and the
drive. This is necessary due to the additional time required for the drive to process the message.