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6/08 ST 3000 Release 300 and SFC Model STS103 User’s Manual 55
5.3 Making Initial Checks, Continued
Analog and DE
modes,
continued
A transmitter in the digital (DE) mode can communicate in a direct
digital fashion with Honeywell’s TPS system and Allen-Bradley PLCs.
The digital signal can include process variable as well as configuration
database data depending upon the broadcast format selected during
configuration.
Software version
compatibility
The SFC model STS103 with software version 5.0 or greater is fully
compatible with all Series 100 and Series 900 Release 300 transmitters.
The SFC will operate with transmitters that have older software
versions, but functions will be limited to those applicable for the
transmitter software.
Write protect option
The ST 3000 transmitters are available with what is called a “write
protect option”. It consists of a jumper located on the transmitter’s PWA
that you can position to allow read and write access or read only access
to the transmitter’s configuration database. When the write protect
option is ordered, transmitters are shipped with a default jumper position
for read-only. This means that the transmitter’s configuration database
can not be overwritten. To allow read/write access, the jumper can be
moved to the read/write position. When the write protect option is not
ordered access is read/write.
Figure 20 shows the location of the write protect jumper on the PWA for
Release 300 transmitters.
Figure 20 Write Protect Jumper Location and Selections.
Failsafe
Direction
Jumper
Meter
Connector
Power
Connector
W
R
Read and
Write
Read Only