Hitachi EH-150 Series Applications Manual page 98

Chapter 6 Communication Mode
[4] Device address / waiting time
1 word
(1)
(1) Device address
Set device address in the high byte.
Note : No.00 is not possible to set.
(2) Waiting time [10ms]
Waiting time is a time between receiving a query and sending a response. Actual waiting time is set time multiplied
by 10ms.
Note : The waiting time is the minimum value. It takes longer depending on system processing time of EH-SIO.
Query
Response
Query
Response
[5] I/O Mapping information (Bit)
Number of bit table divisions
I/O code
I/O address
Address offset
I/O code
I/O address
Address offset
...
I/O code
I/O address
Address offset
(3) Address offset of Modbus protocol (1 word / 1 class)
It specifies where the top address of I/O of (2) is mapped. (H0000 to HFFFF)
« Note »
 (2), (3) of parameter prepares the number set up with the number of table divisions.
 When you use software ver. 1.0, or when you do not use I/O mapping, please set the number of bit table divisions
as H0000. When the number of table divisions is 0, the parameter of I/O classification, I/O No., and address offset
is unnecessary.
(2)
Shifted
Configured waiting time
Figure 6.54 Waiting time
(1) The number of bit table divisions (1 word)
The maximum of the number of table divisions is 10. If a larger
value than 10 is set up, it will become an initial setting error.
1
(2) I/O Code / I/O address (2 word / 1 class)
I/O is specified from the high byte of 1st word. A top address is
code
specified from low byte of 1st word and 2nd word.
2
n (Max.10)
Ex) In case of Y20316 1st word ... H0120, 2nd word ... H0310
6 - 56
: Ready to respond
Shifted due to system
processing.
I/O code :
 H00
X
 H01
Y
 H02
R
 H03
L
 H04
M
Timer / Counter  H05
 H06
CL
I/O No. : H000000 to HFFFFFF