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Table of Contents

Section 1, Typical ModBUS Network

Topography (FIGURE 1-1). . . . . . . . . . . . . . . .1-2

Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

RS485 Communications . . . . . . . . . . . . . . . . . . . . . . .1-2

Transmitter Sensor Distance (FIGURE 1-3) . . . . . . . .1-2

Figure 1-1. Typical ModBUS Network Topography .1-3

Table 1-1. Maximum Power Cable Length . . . . . . .1-4

Table 1-2. Transmitter Power Consumption

(7-30 VDC Supply) . . . . . . . . . . . . . . . . . . . . .1-4

Table 1-3. Remote Sensor Power Consumption

(AC or DC Operation) . . . . . . . . . . . . . . . . . . .1-4

Figure 1-2. Typical Communications Wiring Scheme . . . . .1-5

Figure 1-3. Signal-Boost Sensor Diagram . . . . . . . .1-6

Section 2, Typical Communication Cable

Wiring for Signal Boost (FIGURE 2-1) . . . . .2-1

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1

Display: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1

Relays: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1

Figure 2-1. Typical Communication Cable Wiring

for Signal Boost Option . . . . . . . . . . . . . . . . .2-2

Figure 2-2. Sensor Display Screens . . . . . . . . . . . .2-3

Sensor: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4

Alarm Status Screen . . . . . . . . . . . . . . . . . . . . . . . . . .2-4

Table 2-1. Status Indication Codes . . . . . . . . . . . .2-5

Figure 2-3. Alarm Status Screen . . . . . . . . . . . . . . .2-5

Ultima X Controller or Ultima X Calibrator: . . . . . . . . .2-6

Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6

ModBUS Communications . . . . . . . . . . . . . . . . . . . . . .2-7

Figure 2-4. Push-button Wiring . . . . . . . . . . . . . . . .2-7

" WARNING . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7

MSA Ultima Instruction Manual Addendum

Other manuals for MSA Ultima