Balluff BIS C-60 Serie Handbuch Seite 53

C60_1-029_0108_en.p65
29
Configuration
(continued)
Bit state: 0 = no
1 = yes
30
Reading and writing
30 E
Function Description
Configuring the BIS C-60_1 processor
4th byte, bit 7 Display state of the digital input in the bit header of the input buffers
4th byte, bit 2 Reset the BIS C-60_1 processor through the digital inpu
5th byte, bit 5 Dynamic mode on read/write head 2
(for effects on read/write times, see
Function Description
Processing code tags, reading and writing
To carry out a read or write job, the code tag must be located in the active zone of the read/
write head.
A read/write job has the following sequence (see examples on
1. The host sends to the output buffer:
– the command designator to subaddress 01
– the start address for reading or writing to subaddress 02
– the number of bytes for reading or writing to subaddress 04
– the CT bit according to the code tag type (block size),
– and sets the AV bit in the bit header to high.
2. The processor:
– takes the request (AA in the bit header of the input buffer to high),
– begins to transport the data;
read = from code tag to input buffer,
write = from output buffer to code tag.
Larger data quantities are sent in blocks:
block size of 6 bytes with 2nd bit header,
block size of 7 bytes without 2nd bit header.
The toggle bits in the two bit headers are used as a kind of handshaking between the
host and the BIS C-60_1 processor.
3. The processor has processed the command correctly (AE bit in the bit header of the input
buffer). If an error occurred during execution of the command, an error number will be
written to subaddress 01 of the input buffer and the AF bit in the bit header of the input
Hex
buffer will be set.
48/49)
37...39):
,
Hex
/03 ,
H H
EX EX
/05 ,
H H
EX EX
E 29