Hitachi SV.LINK User Manual page 71

5 PROGRAMMING
(2) Basic parameter areas
These areas are used to set the basic parameters required for cyclic communications. Be
sure to set values in all the areas without omissions. If a certain area is left undefined (e.g.,
a setting of 0 is employed), a parameter setting error may occur.
Register
number
BD008 Status display/control register
address
BD009 Communication response wait
time (ms)
BD00A Cyclic communication retry
count
BD00B Reserved for future use
BD00C Cyclic communication protocol
setting
BD00D MELSEC side IP address
BD00E Communication data endian
conversion
BD00F Reserved for future use
(*1) When an error occurs, the specified register bit is set. This ensures that the error is detected
by a ladder program. All the registers outside the acceptable setting range are in setting error.
For the assignments for the registers, see under "Status display/control register assignments"
(next page). For the setup procedure, see item (6).
(*2) Enter a hexadecimal number to specify the IP address of the MELSEC, which is the remote
station to communicate with.
Example: When the IP address of MELSEC is 162.0.9.194, the setting is HA20009C2 because
162 = HA2, 0 = H00, 9 = H09, and 194 = HC2.
(*3) Only the bit areas can be subjected to endian conversion between big endian and little endian.
Word areas will not be subjected to endian conversion even if the endian conversion option is
enabled.
Area name Area description
Y, Q, R, M, K, G, and E registers
50 to 10,000 ms (Digits below 10
are cut off.)
0 to 10
To be fixed at 0.
To be fixed at 0.
Any setting (in hexadecimal notation)
0: endian conversion effected; 1: no
endian conversion
To be fixed at 0.
5-6
Remarks
(*1)
(*2)
(*3)