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10 Model 2700 Transmitter with PROFIBUS-PA
Startup
2.5 Setting the I/O mode
The transmitter can function in two different I/O modes: Profile-specific and Manufacturer-specific.
The factory default is Manufacturer-specific. The two modes control which function blocks are
available for use, and whether the format of the status byte is “classic” or “condensed.” (See
Appendix D for more information on the format of the status byte.)
• In Profile-specific mode, the transmitter has the use of three AI blocks and one totalizer block.
The status byte output format defaults to classic mode.
• In Manufacturer-specific mode, the transmitter has the use of four AI blocks, four totalizer
blocks, and two AO blocks. The status byte output format defaults to condensed mode.
Refer to Table 2-3 for the slot identifications and blocks permitted by each mode. You must select
modules exactly as described in Table 2-3, or select an empty module for slots that you do not intend
to use. If any modules are left unconfigured, the transmitter will not send data.
To set the I/O mode of the transmitter:
• With the EDD or bus parameters, see the menu flowcharts in Figure 2-2.
• With the display, choose
OFFLINE_MAINT > CONFG > IDENT SEL.
Figure 2-2 Setting the I/O mode
There are two GSD files that correspond to the two I/O modes. If you are using a PROFIBUS host
with GSD files to operate the transmitter, you must use the GSD that corresponds to the I/O mode you
have chosen. Table 2-4 lists the GSD file names. Load the correct GSD file into your PROFIBUS host
or configuration tool.
Table 2-3 I/O mode slot configurations
Slot Profile-specific mode Manufacturer-specific mode
1 AI 1 AI 1
2 AI 2 AI 2
3 AI 3 AI 3
4 Totalizer 1 Totalizer 1
5AI 4
6 Totalizer 2
7 Totalizer 3
8 Totalizer 4
9AO 1
10 AO 2
EDD Bus parameters