Справочник Пользователя для Siemens 500 NIM
NIM Primitives
4-9
SIMATIC TIWAY I Series 500 NIM User Manual
4.4
Primitive Logical Groups
All Siemens TIWAY Primitives fall into logical groups according to their
function, as shown in Table 4-1. Each Primitive has a request and a
response format. The device initiating the transaction formats a request
Primitive, and the device answering the request formats a response
Primitive. The TIWAY I Primitive subset is taken from the categories listed
in Table 4-1.
function, as shown in Table 4-1. Each Primitive has a request and a
response format. The device initiating the transaction formats a request
Primitive, and the device answering the request formats a response
Primitive. The TIWAY I Primitive subset is taken from the categories listed
in Table 4-1.
Table 4-1
Logical Primitive Assignment
Primitive Code (HEX)
Function
16-Bit Addressing
Extended Addressing
Exception and Status
00 — 0F
80 — 8F
Control
10 — 1F
90 — 9F
Read
20 — 2F
A0 — AF
Write
30 — 3F
B0 — BF
Program Modification
Aids
Aids
40 — 4F
C0 — CF
Data Acquisition
Primitives
Primitives
50 — 6F
D0 —EF
Undefined
70 — 7E
F0 — FE
Expansion
7F
FF