Mitsumi electronic NZ2GF-ETB Manual Do Utilizador
231
APPENDICES
A
Appendix 9 Processing Time
Appendix 9.2 Tr
ansmission fr
om the externa
l dev
ice to
a CPU module thr
ough the Ether
net adap
ter
module
Appendix 9.2
Transmission from the external device to a CPU
module through the Ethernet adapter module
module through the Ethernet adapter module
(1) Calculation formula
Tsf = Ke + (Kdt x Df) + 2 × LS + Scr × Number of CPU module's sequence scans required for processing of the
message + ACK processing time of external device [ms]
message + ACK processing time of external device [ms]
*1
For processing time on CC-Link IE Field Network, refer to the following.
User's manual of the master/local module used
*2
For sequence scan time of the CPU module, refer to the following.
User's manual of the CPU module used (Function Explanation, Program Fundamentals)
• Constant (Ke, Kdt)
Tsf
:
The elapsed time between when the Ethernet adapter module receives request data from the external device
and when until the requested processing is completed
and when until the requested processing is completed
Ke, Kdt
:
Constant
Df
:
Number of words in request message (excluding the header) + Number of words in response message
(excluding the header)
(excluding the header)
LS
*1
:
Link scan time of CC-Link IE Field Network
Scr
*2
:
Sequence scan time of CPU module
Item
Command Subcommand
Communication
data code
TCP
UDP
Type
Operation
Ke
Kdt
Ke
Kdt
Device
Read
0401
00 1,
00 0
00 0
Binary code
6
0.0028
6
0.0028
ASCII code
6
0.0045
6
0.0040
Write
1401
00 1,
00 0
Binary code
6
0.0030
6
0.0030
ASCII code
6
0.0051
6
0.0044