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Configuration and Use Manual 19
Required Transmitter Configuration
Using ProLink II Required ConfigurationFlowmeter StartupBefore You Begin Using ProLink II Required ConfigurationFlowmeter StartupBefore You Begin Using ProLink II Required ConfigurationFlowmeter StartupBefore You Begin Using ProLink II Required ConfigurationFlowmeter StartupBefore You Begin
4.3 Configuring the channels
The six input/output terminals provided on the Model 1500 are organized into three pairs. These pairs
are called Channels A, B, and C. The channels should be configured before doing any other I/O
configuration.
The outputs and variable assignments are controlled by the channel configuration. Table 4-2 shows
how each channel may be configured and the power options for each channel.
.
To configure the channels, see the menu flowchart in Figure 4-5.
Figure 4-5 Configuring the channels
CAUTION
Changing the channel configuration without verifying I/O configuration can
produce process error.
When the configuration of a channel is changed, the channel’s behavior will be
controlled by the I/O configuration that is stored for the new channel type, which
may or may not be appropriate for the process. To avoid causing process error:
• Configure the channels before configuring the I/O
.
• When changing channel configuration, be sure that all control loops affected by
this channel are under manual control.
• Before returning the loop to automatic control, ensure that the channel's I/O is
correctly configured for your process. See Sections 4.5, 4.6, and 4.7.
Table 4-2 Channel configuration options
Channel Terminals Configuration Option Power
A 21 & 22 mA output (not configurable) Internal (not configurable)
B 23 & 24 Discrete output 1 (DO1) Internal or external
(1)
(1) If set to external power, you must provide power to the outputs.
C 31 & 32 Discrete output 2 (DO2) Internal or external
(1)
Discrete input (DI)
Configuration
ProLink Menu
Channel
Channel B
· Type assignment
· Power type
Channel C
· Type assignment
· Power type