Beckhoff CX1500-M510 Manual page 151

Example of data assignment
Application example
The value contained in a fast counter input is only to be transmitted when bits in the status word (the latch
input, for instance) have changed. This requires the 32 bit counter value to be masked out (zeroed) in the
interrupt mask. The status is located in byte 0, while the counter value is, by default, contained in bytes or
1..4 of the corresponding PDOs (TxPDO3 in this example, because < 65 digital and < 5 analog inputs are
present).
This means that index 0x6126, sub-index5 must receive the value 0x0000 00FF and that sub-index6 must
have 0xFFFF FF00 written into it.
The corresponding SDOs therefore appear as follows:
11 bit 8 bytes of user data
identifier
0x600+ 0x22 0x26
node ID
11 bit 8 bytes of user data
identifier
0x600+ 0x22 0x26
node ID
Digital outputs
Digital outputs
CX1500-M510, CX1500-B510
0x61 0x05 0xFF
0x61 0x06 0x00
Version: 1.0
Product overview
0x00 0x00 0x00
0xFF 0xFF 0xFF
151