Data Transfer Modes; Normal Transfer Mode - Hitachi S10mini LQS070 Hardware Manual

7.6 Data Transfer Modes

7.6.1

Normal transfer mode

Normal transfer mode is a mode in which data is transmitted/received in the same array as
for remote I/O. The number-of-points setting determines the number of words
transmittable/receivable for each slot.
The followings show samples of points setting and the data to be input/output in the
D.Station when FREE option is selected and FIX option is selected respectively.
(1) When the FREE option is selected
<Configuration example>
<Input/output data array>
When a setting of 16 points is selected (4-word input/output)
Word
offset
When a setting of 32 points is selected (8-word input/output)
Word
offset
Slot
Transmission from D.ST
number
0 0
1 1
2 2
3 3 Pulse counter (data and control code)
Slot
Transmission from D.ST
number
0 0
(Same data as for 0th word)
1
2 1
3
4 2
5
6 3 Pulse counter (data and control code)
(Same data as for the 6th word)
7
7 COMMUNICATION FUNCTION
DI data
AI (channel 0) data
0x0000
DI data
AI (channel 0) data
AI (channel 1) data
0x0000
0x0000
− 65 −
Reception by D.ST
Invalid
Invalid
AO (channel 0) data
Pulse counter (data and control code)
Reception by D.ST
Invalid
Invalid
Invalid
Invalid
AO (channel 0) data
AO (channel 1) data
Pulse counter (data and control code)
Invalid