IP482 Industrial I/O Pack User’s Manual Counter Timer Module
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Acromag, Inc. Tel:248-295-0310 Fax:248-624-9234 Email:solutions@acromag.com http://www.acromag.com
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This Section provides the specific information necessary to program and
operate the IP482 module.
Each IP module contains identification (ID) information that resides in the
ID space per the IP module specification. This area of memory contains 32
bytes of information at most. Both fixed and variable information may be
present within the ID space. Fixed information includes the "IPAH" identifier,
model number, and manufacturer's identification codes. Variable
information includes unique information required for the module. The IP482
ID space does not contain any variable (e.g. unique calibration) information.
ID space bytes are addressed using only the odd addresses in a 64 byte
block (on the “Big Endian” VMEbus). Even addresses are used on the
“Little Endian” PC ISA or PCI buses.
The IP482 ID Space is shown in Table 3.1. Note that the base-address
for the IP module ID space (see your carrier board instructions) must be
added to the addresses shown to properly access the ID information.
Execution of an ID Space Read operation requires 0 wait states.
Hex Offset
From ID Base
Address
ASCII
Character
Equivalent
Numeric
Value
(Hex)
Field Description
01
I
49
All 32MHz IP's
have 'IPAH'
03
P
50
05
A
41
07
H
48
09
A3
Acromag ID Code
0B
45
IP Model Code
1
0D
00
Not Used
(Revision)
0F
00
Reserved
11
00
Not Used (Driver ID
Low Byte)
13
00
Not Used (Driver ID
High Byte)
15
0C
Total Number of ID
PROM Bytes
17
0B
CRC
19 to 3F
yy
Not Used
3.0 PROGRAMMING
INFORMATION
IP Identification Space
(Read Only)
Table 3.1:
IP482 ID Space
Identification (ID)
1. The IP model number is
represented by a two-digit
code within the ID space. The
IP482 is represented by 45
Hex.
