Rs232 & Rs485 - Interface Record; Ascii - Record; I11 T11 192-120101 N6 - March - Parker Compax3 Series Operating Instructions Manual

Parker EME
5. RS232 & RS485 – interface
record
Wiring
5.1

ASCII - record

Command
Answer strings
In this chapter you can read about:
ASCII protocol ................................................................................................................................77
Binary protocol ...............................................................................................................................79
You can communicate with Compax3 in order to read or write objects via plug X10
on the front plate either with RS232 or with RS485.
As a rule 2 records are possible:
ASCII record: simple communication with Compax3
!
Binary record: fast and secure communication with Compax3 by the aid of block
!
securing.
Switching between the ASCII and the binary record via automatic record
RS232: SSK1 (see on page 135 )
RS485: as SSK27 (see on page 136) / RS485 is activated by +5V on X10/1.
The general layout of a command string for Compax3 is as follows:
[Adr] command CR
Adr
RS232: no address
RS485: Compax3 address in the range 0 ... 99
Address settings can be made in the C3 ServoManager under "RS485 settings"
Command
valid Compax3 command
CR
End sign (carriage return)
A command consists of the representable ASCII characters (0x21 .. 0x7E). Small
letters are converted automatically into capitals and blanks (0x20) are deleted, if
they are not placed between two quotation marks.
Separator between places before and after the decimal is the decimal point (0x2E).
A numeric value can be given in the Hex-format if it is preceded by the "$" sign.
Values can be requested in the Hex-format if the CR is preceded additionally by
the "$" sign.
All commands requesting a numeric value from Compax3 are acknowledged with
the respective numeric value in the ASCII format followed by a CR without
preceding command repetition and following statement of unit. The length of these
answer strings differs depending on the value.

I11 T11 192-120101 N6 - March 2004

RS232 & RS485 – interface record
detection.
77