Specifications

1070 072 131-102 (96.08) GB
BUEP19E Protocol7-6
7.3.9 Data Volume Parameter
Parameter word Contents
PW12 Volume of data (in data types) according to type of operand
Example 28H
Volume = 40
Fig. 7-11 BÜP19E — Data volume parameter
The volume of data to be transferred, referring to the type of operand, is
indicated in the parameter.
If the ‘Mask’ type of operand is used, the volume of data should be set to
1. The double length (set mask and reset mask) of the type (e.g. word
mask) indicated in the mask identification is then always transferred in the
sequence low part, high part.
Example:
Data type PW11 Number in bytes
Byte 3 3
Word 7 14
Double word 2 8
Quad word 5 40
Byte mask 1 2
Word mask 1 4
Double word mask 1 8
Quad word mask 1 16
7.3.10 Coordination Parameter
Parameter word Contents
High byte LOW byte
PW13 Coordination sequence point Field coordination marker
Example 02H FFH
I/O status No coordination marker
Fig. 7-12 BÜP19E — Coordination parameter
The coordination parameter consists of a field coordination marker (LOW
byte) and a coordination sequence point (HIGH byte).
The function of the coordination markers is to coordinate the implementa-
tion of a command on the PST. The command is not implemented until
the coordination event is "true"; as far as the CL500 control type is con-
cerned, the coordination sequence point must be accessed or the field
coordination marker must be set to "1"; for the other specified control ty-
pes the addressed coordination marker must be "1" before a coordinated
command can be implemented.