ABB Bailey IMASI03 Universal Analog Input Slave Module

IMASI03 is an analog input slave module produced by ABB, designed for industrial automation control systems for high-precision data acquisition and monitoring. It is widely used in industrial automation, process control, petrochemical, power systems and other fields, providing reliable analog signal acquisition and monitoring functions for various industrial equipment.

 

	IMASI03
	IMASI03
	36*25*8cm
	0.5kg

 

The IMASI03 is a single printed circuit board that occupies one slot in an INFI 90 Module Mounting Unit (MMU). Two captive latches on the module faceplate secure it to the MMU. The slave module has three card edge connectors for external signals and power: P1, P2 and P3. P1 connects to the supply voltages. P2 connects the IMASI03 to the slave expander bus, over which it communicates with the MFP.

 

Connector P3 carries the inputs from the input cable plugged into the termination unit (TU) or termination modules (TM). The terminal blocks for field wiring are on the TU/TM.

 

The single dipswitch on the IMASI03 module sets the address for the slave or selects on-board tests. Refer to Section 3 for the steps to set the module address. Refer to Section 6 for the on-board tests. Be sure to check the switch setting before putting the module into the MMU.

 

Jumpers configure the type of analog input signals. Refer to Section 3 for the correct setting of these jumpers.

 

Figure 1-1 shows the INFI 90 communication levels.

 

The design of the IMASI03 module, as with all INFI 90 modules, allows for flexibility in creating a process management system. Refer to the NOMENCLATURE entry of this section to see the list of devices that can be used with the slave module in an INFI 90 system.

 

• The IMASI03 conditions (filters, amplifies and isolates) up to 16 analog input signals.
• The IMASI03 converts analog signals to digital values, adds compensation and corrections as needed, and provides digital values to the MFP through the slave expander bus.

     E, J, K, L, N (14 AWG), N (28 AWG), R, S, T, U thermocouples.

     Millivolt (-100 to +100 mV).

     3-wire RTDs (10, 100 U.S., 100 European, 120 and Chinese 53 Ohm).

     High level (-10 to +10 V).

     Current (4-20 mA).

• Resolution of the analog-to-digital conversion process is programmable over a range from 16 to 24 bits.
• Input type and channel resolution may be selected independently for each channel, permitting any mix of inputs on a single IMASI03 module.
• The slave scales the block output value to engineering units for low and high level voltage inputs. Input type and zero and span values are specified in function code 216.
• Thermocouple inputs have cold junction compensation. Each termination device has a built-in cold junction reference. The cold junction reference applied to thermocouple inputs may be this built-in reference or it may be a remote reference read from another input from this or another slave.
• The IMASI03 can be removed or installed without turning off power to the system.