IMO Precision Controls K7 Series User Manual page 136

Chapter8 Communication Function
2) Continuous reading(RSB) of device
(1) Introduction
This is a function that reads the PLC device memory directly specified in accord with memory data type.
With this, data is read from specified address as much as specified continuously.
(2) PC request format
Station
Format name Header
No.
H10
Ex. of frame ENQ
H3130
ASCII value H05
Remark
1) Number of data specifies the number according to the type of data. Namely, if the data type of device is
word, and number is 5, it means that 5 WORDs should be read.
2) Max. of %MW in number of data can be used up to 64.
3) Protocol of RSB doesn't have number of blocks.
4) R(r)SB command of bit devices is not available.
Item
When command is lowercase(r), only one lower byte of the value resulted by adding 1 Byte
BCC
each to ASCII values from ENQ to EOT is converted into ASCII and added to BCC.
Device This indicates the number of name's characters that means device, which is allowable up to
length(Name 16 characters. This value is one of ASCII converted from hex type, and the range is from
length of device) H01(ASCII value:3031) to H10(ASCII value:3130).
Address to be actually read is entered. This must be ASCII value within 16 characters, and in
Device name
this name, digits, upper/lowercase, and '%' only are allowable to be entered.
Command Device
Command
type length
SB H06
R(r)
H5342 H3036
H52(72)
8-13
Number of data
Device
(Max. 128 Bytes)
%MW100 H05
H254D57313030 H3035
Explanation
Frame
Tail
check
EOT BCC
H04