1. Se rial communications Basics
1.5 Syntax

Characters

In this manual, all characters are expressed using the C- language syntax:
decimal values ddd2
hexadecimal values \xhh3
The characters that can be used are
For text fields: "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789+-/&@#_:;abcdefghijklmnopqrstuvwxyz”
For filenames: "?*ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_ -"

Negative values /numbers

The 2s complement number system is used to express negative numbers

Pascal- language string

A Pascal-language string consists of one or more characters. The first character of the string contains the length of the string.
Therefore, a Pascal-language string is limited to 255 characters.
Pascal string ’Hello world”
length \x0b
’h’ \x68
’e’ \x65
’l’ \x6c
’l’ \x6c
’o’ \x6f
”\x20
’w’ \x77
’o’ \x6f
’r’ \x72
’l’ \x6c
’d’ \x64

C-language string

A C-language string consists of one or more characters. The last character of the string is always the NULL character \x00.There-
fore, the length of a C-language string is determined by the position of the NULL character..
C string ’Hello world”
’h’ \x68
’e’ \x65
’l’ \x6c
’l’ \x6c
’o’ \x6f
”\x20
’w’ \x77
2. ddd=0...255
3. hh=00...ff
R5976884 RLM SERIES 04/04/2006 9