Hitachi EH-150 Series - Page 173

Appendix
A - 9
Table.A.7 The parameter in a message
ITEM
CONTENTS
Response TM
(Response timer)
When PLC receives a command from host, PLC will send back a response after waiting TM x
10ms. Possible range is 0-F, which corresponds with 0 - 150ms.
In case of "with station No.", please set TM as 20ms or longer.
Station No.
The setting range is from 00 to 31 in BCD code.
LUMP Address
It is an address for access over CPU link network.
L : Loop No. (When there are two LINK modules, smaller slot number is loop No.1.)
U : Station No. of Link module
M: Module No. (It is used for error detection etc. In case of address from CPU, it is always 00.)
P : Port No. (It is used for error detection etc. In case of address from CPU, it is always 00.)
* In case of EH-SIO, Please set as L:FF, U:FF, M:00, P:00.
In case of transmission control procedure 2, LUMP address is not used.
Task code
Refer to following pages.
Sum
ASCII converted value of sum from TM to end of task code with 1 byte step.
[ Example ]
02
32
30
34
46
46
46
46
30
30
30
30
31
30
32
46
0D
STX
TM
Station No.
(04)
L U M P
CPU status read
Sum
CR
30
30
2F  32 46 (ASCII)
H32 + H30 + H34 + ... + H30 + H30 = H 3 2 F