Primitive logical groups (continued) – Siemens 500 NIM User Manual
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NIM Primitives
4-10
SIMATIC TIWAY I Series 500 NIM User Manual
Primitive Logical Groups (continued)
The subset of TIWAY I Primitives supported by the Series 500 NIM is given
in Table 4-2. Future additions to this subset will be announced as they are
implemented. Note that each of the following Primitives fits into the general
categories listed in Table 4-1.
Table 4-2
Series 500 NIM Primitive Subset
Primitive Code (HEX)
Non-extended
Address
Extended
Address
Type
00
80
Exception reporting
01
81
Native
02
82
Attached device status
03
83
Attached device type/confirmation
04
84
Primitive format configuration
05
85
Packed native
06
86
Reset secondary device mode
07
87
Segment definition
10
90
Change state
20
A0
Read block (single contiguous block)
21
A1
Read random block
30
B0
Write block (single contiguous block)
31
B1
Write random block
50
D0
Define blocks (up to 32 separate blocks)
51
D1
Gather defined blocks
52
D2
Write and gather defined blocks
55
D5
Define records (up to 32 records)
56
D6
Gather defined records
57
D7
Write and gather defined records
58
D8
Program upload
59
D9
Program download
You can use extended addresses by adding 80hex to the non-extended
address primitive. With extended addresses, the AAAA field is expanded
from sixteen bits to 32 bits (AAAAAAAA). This allows you to access data
element locations beyond the non–extended limit of 65,535. With extended
addresses, you can access up to 4,294,967,296 locations.
Series 500 NIM
Primitive Subset