Omron C200HE User Manual

This section explains the various Host Link commands that can be issued from
the host computer to the PC. Refer to 8-2 Host Link Communications for in-
formation on the procedures for using host link commands and errors
associated with host link commands.

Reads the contents of the specified number of IR and SR words, starting from
the specified word.

@

FCS

x 10

1

x 10

0

x 10

3

x 10

2

↵

R

R

x 10

1

x 10

0

x 10

3

x 10

2

x 10

1

x 10

0

Node no.

Header
code

Beginning word
(0000 to 0511)

No. of words
(0001 to 0512)

Terminator

@

R

R

FCS

x 10

1

x 10

0

x 16

1

x 16

0

↵

x 16

3

x 16

2

x 16

1

x 16

0

End code

Read data (1 word)

Read data (for number of words read)

Terminator

Node no.

Header
code

The text portion of the response’s first frame can contain up to 30 words. If more
than 30 words are read, the data will be returned in multiple frames.

In the second and later frames, the text portion of the response can contain up to
31 words.

The INITIALIZE and ABORT commands can be sent instead of the delimiter for
multiple responses for this command. If other commands are sent, they will be
treated the same as delimiters.

OK

OK

OK

OK

OK

OK

---

OK

OK

An end code of 14 (format error) will be returned if the length of the command is
incorrect and an end code of 15 (entry number data error) will be returned if the
specified words exceed the data area boundaries or aren’t specified in BCD.

00

Normal completion

13

FCS error

14

Format error

15

Entry number data error

18

Frame length error

A3

Aborted due to FCS error in transmit data

A8

Aborted due to frame length error in transmit data