Cubemass DCI
6 Endress+Hauser
Output
Output signal Current output
Active/passive selectable, galvanically isolated, time constant selectable (0.05 to 100 s),
full scale value selectable, temperature coefficient: typically 0.005% o.f.s. / °C, resolution: 0.5 μA
• Active: 0/4 to 20 mA, R
L
< 700 Ω, R
L
≥ 250 Ω (HART)
• Passive: 4 to 20 mA; supply voltage V
S
: 18 to 30 V DC; R
i
≥ 150 Ω
o.f.s. = of full scale value
Pulse/frequency output
Active/passive selectable, galvanically isolated
• Active: 24 V DC, 25 mA (max. 250 mA during 20 ms), R
L
> 100 Ω
• Passive: open collector, 30 V DC, 250 mA
• Frequency output: full scale frequency 2 to 10000 Hz (f
max
= 12500 Hz), on/off ratio 1:1,
pulse width max. 2 s
• Pulse output: pulse value and pulse polarity selectable, pulse width configurable (0.05 to 2000 ms)
MODBUS RS485
• MODBUS device type: slave
• Address range: 1 to 247
• Supported function codes: 03, 04, 06, 08, 16, 23
• Broadcast: supported with the function codes 06, 16, 23
• Physical interface:
RS485 in accordance with EIA/TIA-485 standard
• Supported baud rate: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 Baud
• Transmission mode:
RTU or ASCII
• Response times:
Direct data access = typically 25 to 50 ms
Auto-scan buffer (data range) = typically 3 to 5 ms
• Possible output combinations È Operating Instructions
Signal on alarm Current output
Failsafe mode selectable (for example, according to NAMUR Recommendation NE 43)
Pulse/frequency output
Failsafe mode selectable
Relay output
De-energized in the event of fault or power supply failure
MODBUS RS485
If an error occurs, the value NaN (not a number) is output for the process variables.
Switching output Relay output
Normally closed (NC or break) or normally open (NO or make) contacts available
(factory setting: relay 1 = normally open),
max. 30 V / 0.5 A AC; 60 V / 0.1 A DC, galvanically isolated.
Load È "Output signal"
Galvanic isolation All circuits for inputs, outputs, and power supply are galvanically isolated from each other.
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