Toshiba nv Series Instruction Manual page 65

"Medium speed" and "high speed" is available as the TC-net I/O loop scan transmission speed.
The input and output areas for the slave I/O devices process data (cyclic data) can be specified as the high
speed or medium speed area via the nV-Tool by using a DN912 module parameter "High-speed scan use byte
size (input/output)" above.
nV-Controller
(PU811)
TC-net I/O loop
common memory
High speed
Medium speed
Medium speed
High speed
Medium speed
Figure 4-3 Specification of medium/high speed TC-net I/O loop scan
TC-net I/O loop
common memory
High speed
Medium speed
Medium speed
Scan
transmission
High speed
Medium speed
Loop
Unified Controller nv Series DeviceNet Module DN912 Instruction Manual
DN912
DeviceNet
Output area
0
High speed
HS area
63
Medium speed
MS area
Input area
0
High speed
HS area
63
Medium speed
MS area
RAS
Fixed at
Fixed at MS
Medium speed
4.4 DeviceNet network setting
DeviceNet
Slave I/O device
Output
Device
I/O output
NA=0
：
Output
Device
I/O output
NA=63
Input
Device
I/O input
NA=0
：
Input
I/O input
Device
NA=63
DeviceNet
49