Ruggedized Version of the Module

The BMEAHO0412C (coated) equipment is a ruggedized version of the BMEAHO0412(C) (standard) equipment. It can be used at standard temperatures -25...60 ºC (-13...140 ºF) and in harsh chemical environments.

The BMEAHO0412C equipment has the same performance characteristics as the standard BMEAHO0412(C) equipment.

If this equipment is operated outside the -25...60 ºC (-13...140 ºF) temperature range, the equipment can operate abnormally.

For more information, refer to chapter Installation in More Severe Environments.

Altitude Operating Conditions

The characteristics in the tables below apply to the modules BMEAHO0412(C) and BMEAHO0412C for use at altitude up to 2000 m (6560 ft). When the modules operate above 2000 m (6560 ft), apply additional derating.

For detailed information, refer to chapter Operating and Storage Conditions.

General Module Specifications

The eX80 HART analog output BMEAHO0412(C) and BMEAHO0412C modules possess the following general characteristics:

Head module compatibility

  • Local rack: BME P58 x0x0 CPU

  • Remote I/O drop: BME CRA 312 10 adapter

Isolation:

–

  • between channels

1000 Vdc (1 minute duration)

  • between channels and bus

1400 Vdc (1 minute duration)

  • between channels and ground

1400 Vdc (1 minute duration)

Operating ambient temperature

  • BMEAHO0412(C): 0...60° C (32...140 °F)

  • BMEAHO0412C: -25...60° C (-13...140 °F)

Vibration

10 mm / 3 g / x10 (per IEC60068-2-6)

Shock

30 g / 11 ms / x3 (per IEC60068-2-27)

Power consumption (3.3 V)

380 mA

Power consumption (24 V)

137 mA

Field device support

2-wire / 4-wire

Hot-swap support?

Yes

Analog Specifications

The eX80 HART analog output BMEAHO0412(C) and BMEAHO0412C modules possess the following analog characteristics:

Number of channels

4

Type of outputs

Current configured by software

Nominal range (full scale)

4-20 mA

Maximum conversion range

0...21 mA

Measurement accuracy for BMEAHO0412(C) module:

–

  • Accuracy at 25 °C

0.1% of full scale

  • Accuracy at 0...60 °C

0.2% of full scale

Measurement accuracy for BMEAHO0412C module:

–

  • Accuracy at 25 °C

0.1% of full scale

  • Accuracy at - 25...60 °C

0.45% of full scale

Temperature drift

45 ppm / °C

Display resolution

15-bit plus sign bit

Least significant bit weight

0.366 μA

Refresh time:

–

  • per module

2 ms(1)

  • per channel

2 ms(1)

Response time:

–

  • with HART enabled

20 ms

  • with HART disabled

2 ms

Maximum load impedance

  • 600 Ω (0...20 mA)

  • 570 Ω (0...21 mA)

Detection type

broken wire

Monotonicity?

Yes

Common mode rejection (50/60 Hz)

90 dB

Crosstalk between channels DC and AC 50/60 Hz

> 70 dB

Non-linearity

0.1% of full scale

(1) Refresh times are for only the module internal buffer, and are impacted by PLC cycle time.

HART Specifications

The eX80 HART analog output BMEAHO0412(C) and BMEAHO0412C modules possess the following HART characteristics:

HART protocols supported(2)

HART versions 5, 6 and 7

Number of channels

4

Scan time:

–

  • Typical(1)

1 s

  • Maximum(1)

5 s

Detection time for a non-responsive device

= (scan time) + (timeouts)

HART command system

ARCOM (interface to a HART primary)

Topology

Point-to-point

HART I/O mapping?

Yes

(1) Scan time is the same for each channel and for the module. The scan time depends on the byte length of the command. The scan time values do not include PLC cycle time. Add the values to determine overall scan time.

(2) The eX80 HART output module supports HART up to versions 7.2 and 7.3.