OPTO 22 SNAP-IAC-16, User Manual

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CHAPTER 2: USAGE NOTES AND SPECIFICATIONS
SNAP High-Density Digital Module User’s Guide 15
NOTES ON LEGACY HARDWARE AND SOFTWARE
For important information on mixing current and legacy products, see Opto 22 form 1688, SNAP PAC System
Migration Technical Note .
Using HDD Modules with Legacy Hardware
Most high-density digital modules can be used only with SNAP PAC brains and R-series controllers. However,
the following table lists some HDD modules that can be installed on I/O units using legacy I/O processors and
racks:
Support for these HDD modules on legacy hardware is limited. See form 1688, SNAP PAC System Migration
Technical Note , for more information.
To check processor firmware and load new firmware if required, follow instructions in form 1714,
PAC Manager User’s Guide, Legacy Edition .
Note that SNAP high-density modules cannot be used with digital-only processors, because high-density
modules communicate with the processor as an analog module communicates.
HDD modules can be placed anywhere on B-series racks, even in slots marked “Analog Only.”
Using HDD Modules with Legacy Software
For SNAP-IDC-32, SNAP-ODC-32-SNK, and SNAP-ODC-32-SRC modules , it is best to use PAC Control 8.0
or newer. If you do, follow steps in form 1688, SNAP PAC System Migration Technical Note , to enable deprecated
HDD commands, and use these instead of standard digital commands. You can also use ioControl version 6.1
or newer with the SNAP-IDC-32, SNAP-ODC-32-SNK, and SNAP-ODC-32-SRC modules. Use the separate HDD
commands for reading and writing.
Similarly, PAC Manager 8.0 or newer is required for the best use of HDD modules, but you can also use
ioManager 6.1 or newer for one-time reads and writes to the same three modules.
If you must read and write to these three modules using ioDisplay 6.0 (not recommended; upgrade to PAC
Display or at least to ioDisplay 6.1), see form 1561,
Using ioDisplay 6.0 with SNAP 32-channel Digital Modules
Technical Note .
For all other HDD modules, you cannot use legacy software or hardware. You must use SNAP PAC
controllers and brains with the version of PAC Control that supports the specific modules.
These HDD Modules...
...can be used with these
legacy processors*
...on these racks
SNAP-IDC-32
SNAP-ODC-32-SNK
SNAP-ODC-32-SRC
SNAP-UP1-M64
SNAP-ENET-S64
SNAP-M16
SNAP-M32 SNAP-M48
SNAP-M64
SNAP-UP1-ADS
SNAP-B3000-ENET
SNAP-ENET-RTC
SNAP-B4M
SNAP-B8M
SNAP-B8MC
SNAP-B8MC-P
SNAP-B12M
SNAP-B12MC
SNAP-B12MC-P
SNAP-B16M
SNAP-B16MC
SNAP-B16MC-P
*Processors must have firmware 6.1 or higher.