Справочник Пользователя для Siemens SIMATIC TIWAY 1

Use the ALLOCATE SOURCE ID command, code 10, to specify a Source
Identification number which can range from 1 to 254 (01 to FE hex). Only
thirty-two unique Source Identification numbers can be used at any one time.
Figure 2–17 illustrates the relationship between Source Ids and macro buffers.

Source ID #1
(OE)

Source ID #2
(1A)

Source ID #32
(E5)

Macro Buffer
#1

Macro Buffer
#35

Macro Buffer
#63

Macro Buffer
#87

Macro Buffer
#2

Macro Buffer
#3

Macro Buffer
#80

Macro Buffer
#97

Macro Buffer
#109

Macro Buffer
#4

Macro Buffer
#33

Macro Buffer
#60

Up to 32 
unique
source
IDs

Up to 254 
Macro
Buffers