Communications function, 11*1 connections with the afloo terminal, Toshiba – Toshiba LF434 User Manual
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TOSHIBA
6 F 8 A 0 7 7 0
11. Communications Function
Tlie LI^'404 convener uses the HAR'l' protocol to iransmil digital sigtiaJs over the 4-20mA
output line. The AFlOO hand-held terminal is used to communicate with (he [,F404 using the
HART protocol. You can cheek or change configuration parameters, calibrate I lie flowmeter
or monitor the flowmeter measuring value from a remote place.
See the instnicUoit manual tor the AFlOO hand-held terminal (6F8A0699) for details,
11*1 Connections with the AFlOO Terminal
Connect the probe cable of the AF1 DO terminal iu parallel wnth the load resistance w'hich is
v-nred from the current output terminals (+ and -), Use points such as pins of terminal board
or junction terminal to connect with the dip of the probe. See Figure 11.1 To connect the
AFlOO directly to the flowmeter, use the terminals + and - Sec Figure 11,2. These current
output terminals are polarized (positive and negative) but you can connect ihe probe to these
terminals without considering their polarity.
Figure iFi Connectinns to the current output line
Terminal block
Figure 1U2 Connections to the terminal block
- no -