
Analog Input
Modules
Multi-channel units
with flexible I/O ranges
900MB analog input models
provide an isolated network
interface for voltage, current
and temperature sensor signals
or for non-networked controller
signals. High-resolution, low
noise, A/D converters deliver
high accuracy and reliability.
Highlights
• Universal I/O ranges support
a variety of devices
• Differential inputs eliminate
ground loops
• Discrete outputs enable
local limit alarms or host-
controlled on/off switching
• Modbus-RTU high-speed
RS-485 communication
Analog Output
Modules
Control up to 4 devices
with a single unit
917MB/918MB models provide
an isolated network interface
for analog output signals.
Outputs can be used to control
mechanical equipment or write
to display devices, data loggers
and recorders, or to transmit
data to non-networked PLCs
and controllers.
Highlights
• Universal I/O ranges support
a variety of devices
• Discrete outputs enable
local limit alarms or host-
controlled on/off switching
• Modbus-RTU high-speed
RS-485 communication
Discrete Input
Modules
Monitor 12 signals
per unit
900MB discrete input models
provide an isolated network
interface for logic-level devices
with active-high or low inputs.
Inputs monitor on/off, high/low,
or open/close status of motors,
pumps, valves, heaters, fans,
and other industrial equipment.
Highlights
• 12 I/O channels in a single
inch-wide unit reduces
system costs and saves
panel space
• Built-in pull-up/pull-down
resistors simplify wiring and
lower system costs
Discrete Output
Modules
Control 12 devices
from one unit
900MB discrete output models
provide an isolated network
interface to control logic-level
devices with high or low-side
switching. Outputs control on/
off, high/low, or open/close
status of motors, pumps, valves,
heaters, fans, and other indus-
trial equipment.
Highlights
• Bi-directional I/O provides
level control and status
verification in one unit.
• Watchdog timers provide a
configurable failsafe output
state for use when host I/O
communication is lost
11
Analog I/O Modules
Model Analog Input Channels Analog Output Channels Discrete Outputs or Limit Alarms Communication Protocol
913MB/914MB 4 AC/DC current or DC voltage inputs 4 MOSFETs (1A, 0-35V DC) RS-485 Modbus-RTU
917MB/918MB 4 DC current or DC voltage outputs 4 MOSFETs (1A, 0-35V DC) RS-485 Modbus-RTU
924MB 4 thermocouple or DC millivolt inputs 4 MOSFETs (1A, 0-35V DC) RS-485 Modbus-RTU
932MB/934MB 2 or 4 RTD or resistance inputs 4 solid-state relays (1A, 0-48V DC) RS-485 Modbus-RTU
942MB Frequency or pulse inputs 4 solid-state relays (1A, 0-48V DC) RS-485 Modbus-RTU
BUSWORKS 900MB SERIES
Discrete I/O Modules
Model Discrete Input Channels Discrete Output Channels Loop-back Monitoring Communication Protocol
901MB 12 active-low inputs (0-35V DC) RS-485 Modbus-RTU
902MB 12 low-side switches (0-35V DC) RS-485 Modbus-RTU
903MB 12 bi-directional I/O (any mix), active-low inputs, low-side switches Tandem I/O circuitry verifies output status RS-485 Modbus-RTU
904MB 12 active-high inputs (0-35V DC) RS-485 Modbus-RTU
905MB 12 high-side switches (0-35V DC) RS-485 Modbus-RTU
906MB 12 bi-directional I/O (any mix), active-high inputs, high-side switches Tandem I/O circuitry verifies output status RS-485 Modbus-RTU
Product Guide
T:
+31 (0)10 5298827 F: +31 (0)10 5298828 Email: [email protected] Web: www.amplicon.nlT: +31 (0)10 5298827 F: +31 (0)10 5298828 Email: [email protected] Web: www.amplicon.nl
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