Emerson Daniel 3814, Installation Manual

Page: 63 / 110

for an external power source. Refer to the Field wiring diagram DMC-004936 in Appendix
A .
3.6.3 Analog output settings
The 960-24
™
MSTS provides two 4-20 mA analog output signals that are software
configurable for either sink or source current (see Engineering Drawings drawing
DMC-004936).
Full HART
®
functionality is provided so that any commercially available HART
®
transmitter
which meets the specifications of the HART
®
Communications Foundation can be
connected to the Daniel 3814 Liquid Ultrasonic Flow Meter.
Analog Output 2 (AO2) is user-configurable as a conventional 4-20 mA output.
3.6.4 Digital input
The 960-24
™
MSTS provides one digital input that can be used as a general purpose input
or used for synchronizing calibration (for flow calibration gating-contact closure). The
meter records the volume seen between switch closures. The polarity of the input is
configured as normal or inverted polarity.
• Polarity is determined by the IsDI1ForCalActiveLow and the gating edge is determined
by the IsDI1ForCalStateGated (calibrate edge gated or calibrate state gated).
• Calibration is started via an inactive>active state change.
The digital input must be configured via the Daniel MeterLink Tools
→
Edit/Compare
Configuration page.
3.6.5 DHCP server switch settings
The meter can be configured to act as a DHCP server. The DHCP server is enabled/disabled
via CPU Module DHCP switch as follows:
Table 3-6: DHCP server switch settings
CPU Module switch DHCP server disabled DHCP server enabled
DHCP OFF ON
3.6.6 Configuration protect switch settings
The meter’s configuration parameters and firmware can be protected against changes via
CPU Module Write PROT. switch as follows:
Table 3-7: Configuration protect switch settings
CPU Module switch Configuration protected Configuration unprotected
WRITE PROT. ON (default) OFF
A complete list of write-protected parameters is in Appendix A .
Installation manual Electrical Installation
3-9000-760 May 2019
Installation manual 63