Xseries On-Board Input/Output; Table 4 External Integral Multivariable (Ximv) Specifications - ABB XSeriesG4 User Manual

Item
Ambient Temp. Effect
Stability
Static Pressure Effect
The XIMV is a direct replacement for the AMU. The XIMV always measures static pressure on the high side. The XIMV can be
ordered from the factory with the XIMV unit rotated on the meter enclosure; however, this is only offered as an aid to the
mechanical installation process. Static pressure is still measured on the high pressure side.
IMPORTANT NOTE: For the purpose of clarity, the XIMV is a multi-variable transducer (includes a static pressure
cell, a differential cell and a RTD input). The XIMVs new technology offers higher accuracy, better linearity and
better overall performance over the older AMU.

3.6 XSeries On-board Input/Output

Totalflow's XSeries flow computers are backward compatible with the same base I/O as earlier models but enhanced to include:
— XIMV Interface: 1 SP, 1 DP, 1 TF
— 1 Dedicated Local Communication Port
— 2 User A/Is
— 2 User D/Os
— 2 User D/Is or 2 User High Speed P/Is
— 2 RS-232 or RS-485 Comm Ports
— Interface for TFIO Modules
The main electronic panel is an enhanced replacement for the previous versions of the FCU main electronic panel. The following
sections will display the specifications for the digital/pulse inputs, the digital output and the analog input. For a complete
overview of the circuit board, see Figure 8.
3.6.1 Communication Ports
The user has the ability to program up to two onboard communication ports on the flow computer board. Normally, COMM 0 is
the local port required for reading the flow computer with a laptop computer running PCCU32 (version 7.05.5 or greater). COMM
1 and COMM 2 can be configured for any combination of RS-232 or RS-485.
3.6.2 Digital Input
The flow computer provides two digital/pulse inputs as a means to monitor external equipment.
IMPORTANT NOTE: When connecting or disconnecting any wires to the flow computer board, the user should
remove all power sources and insure they are properly grounded.
The digital input reads an external contact. This is primarily used as a status input to read external equipment. This contact must
be closed to be considered on. The on condition is recorded in the log period alarms and can trigger the action of the flow
computer's digital voltage (12 Vdc) output is off is defined as an open contact. Selectable de-bounce may be enabled or
disabled within PCCU32. See the software help files for additional information.
3.6.2.1 Electrical Specification (Each Point)
— Open circuit voltage: 5 Vdc (Internally pulled up to 5 Vdc Nom.).
Description
Standard Accuracy: <= 0.2% of URL (Upper Range Limit)
Optional Accuracy: <= 0.05% URL
 0.15% of URL (per 160F, 71C)
 0.125% of Reading
 0.1% of URL for 12 months
DP Zero per 1500 PSI:  0.03% of calibrated span
DP Span per 1500 PSI:  0.05% of URL

Table 4 External Integral Multivariable (XIMV) Specifications

28 XFC G4 2103335 Rev AB