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Installation Manual 61
Specifications
Output Wiring – Configurable I/O SpecificationsOutput Wiring – Fieldbus/PROFIBUSOutput Wiring – Intrinsically Safe Output Wiring – Configurable I/O SpecificationsOutput Wiring – Fieldbus/PROFIBUSOutput Wiring – Intrinsically Safe Output Wiring – Configurable I/O SpecificationsOutput Wiring – Fieldbus/PROFIBUSOutput Wiring – Intrinsically Safe Output Wiring – Configurable I/O SpecificationsOutput Wiring – Fieldbus/PROFIBUSOutput Wiring – Intrinsically Safe
Model 2700 transmitters with non-incendive FOUNDATION fieldbus outputs option board (output option
code N)
One F
OUNDATION fieldbus H1 output:
-F
OUNDATION fieldbus wiring is non-incendive
- Manchester-encoded digital signal conforms to IEC 1158-2
Model 2700 transmitters with PROFIBUS-PA outputs option board (output option code G)
One PROFIBUS-PA output:
- PROFIBUS-PA wiring is intrinsically safe with an intrinsically safe PROFIBUS-PA
network power supply
- Manchester-encoded digital signal conforms to IEC 1158-2
A.1.3 Digital communication
Model 1700/2700 transmitters support the following digital communications:
Service port
• One service port can be used for temporary connection only
•Address 111
• Uses RS-485 Modbus RTU signal, 38.4 kilobaud, one stop bit, no parity
HART/Bell202
A HART/Bell202 signal can be superimposed on the primary mA output and used for interface with a
host system:
• Frequency: 1.2 and 2.2 kHz
• Amplitude: 0.8 mA peak-to-peak
• 1200 baud
• Requires 250 to 600 Ohms load resistance
HART/RS485 or Modbus/RS485 (transmitters with analog outputs option board only)
One pair of terminals provides RS-485 communications:
• Can be used for direct connection to a HART or Modbus host system
• Accepts baud rates between 1200 baud and 38.4 kilobaud
F
OUNDATION fieldbus or PROFIBUS-PA transmitters
One pair of terminals provides F
OUNDATION fieldbus or PROFIBUS-PA communications:
• Resource, transducer, and function blocks per F
OUNDATION or PROFIBUS specification