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9. Exchanged Data Structures
9.1 Output (Control) Data Format
The size of the output data structure from the network master to the PBDP-110
depends on the module selected from the GSD file for the network
configuration tool. Module #1, intended for applications where only one drive
is connected to the PBDP-110 (via Channel A), is comprised of 16 bytes
structured as four 32-bit words. Module #2, intended for applications where
drives are connected to both Channel A and Channel B, is comprised of 32
bytes structured as eight 32-bit words. Both of these modules are combined in
Table 1.
Table 1: Module 1 and Module 2 Output Data Format
Offset Data Offset Data
0 Reserved 16 Reserved
1 Reserved 17 Reserved
2 Drive A command high byte 18 Drive B command high byte
3 Drive A command low byte 19 Drive B command low byte
4 Reserved 20 Reserved
5 Reserved 21 Reserved
6
Drive A frequency
command high byte
22
Drive B frequency
command high byte
7
Drive A frequency
command low byte
23
Drive B frequency
command low byte
8
Reserved /
Drive A action bits
24
Reserved /
Drive B action bits
9 Reserved 25 Reserved
10
Drive A parameter number
high byte
26
Drive B parameter number
high byte
11
Drive A parameter number
low byte
27
Drive B parameter number
low byte
12 Reserved 28 Reserved
13 Reserved 29 Reserved
14
Drive A parameter data to
write high byte
30
Drive B parameter data to
write high byte
15
Drive A parameter data to
write low byte
31
Drive B parameter data to
write low byte
