113
Response monitoring time:
Specify the response wait time when the response request bit is set to 0
(response required). Specify the time in hexadecimal (0 to FF).
Unit address of source node:
The address is fixed at $00
Source node address:
Specify the node address of the source node in hexadecimal (1 to 7E).
Control Data Settings
The table below shows the range of values that can be set for each item.
Item
Setting
Number of words transferred
$0000 to $03E8 (0 to 1000word)
Operating level
0 (OFF): level #1
1 (ON): level #0
Response request bit
0 (OFF): Response required
Indirect addressing bit for beginning
source word
0 (OFF): Direct addressing
1 (ON): Indirect addressing
No. of retries
$0 to $F (0 to 15)
Response monitoring time
$00: Default (2.2 seconds)
$01 to $FF (approx. 0.1 to 25.5 seconds in
100 ms increments)
Unit address of source node
$00: PC
Source node address
$01 to $7E: Source node address
(1 to 127)
8-4
Minimum Transmission Delay Time for SEND/RECV
Instructions
The minimum transmission delay time for SEND/RECV instructions is as illus-
trated below.
SEND/RECV
Instruction executed
Data set
Minimum transmission
delay time
Service link interval
(local node)
Service link interval
(remote node)
Communications cycle
(not fixed)
Transmission
processing
(command)
Reception processing
(response)
Reception pro-
cessing (com-
mand)
Transmission processing
(response)
The Ethernet communications cycle time differs according to system configura-
tion and load, so in this instance the communications cycle time is calculated as
0.
Minimum transmission delay time
= service link interval (local node) + transmission processing (command)
+ communications cycle + reception processing (command)
+ service link interval (remote node) + transmission processing (response)
+ communications cycle + reception processing (response)
+ service link interval (local node).
•
Service Link Interval
One cycle time for the C200HX/HG/HE CPU
Minimum Transmission Delay Time for SEND/RECV Instructions
Section 8-4
Содержание SYSMAC C200HW-PCS01-EV1
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