HP E1415A VXI Algorithmic Closed Loop Controller (Scanning ADC)

The HP E1415A requires SCPs (Signal Conditioning Plug-ons) to condition signals for measurement.

Product Features

• 1 to 32 control loops
• Multiple inputs and outputs per loop
• 2.5 kz maximum update rate
• User-written ‘‘C’’ code control algorithms or default PID
• On-the-fly change of coefficients and algorithms
• VXIplug&play frameworks are supported per the Instrument Drivers information listed below

Note: Configuration software that allows you to easily select compatible interfaces, controller platforms, and VXI test system components is available on CD ROM. Order the "Test System and VXI Products Catalog and CD ROM" from the Test & Measurement Catalogs available on this web site.

Product Specifications

Loop Control Specifications
General

Number of loops: 1 to 32
Default control algorithm type: PID 
Maximum loop update rate (for default PID algorithm): 
	1 loop: 2.5 kHz
	8 loops: 1 kHz 
	32 loops: 250 Hz

Custom Algorithm Development

Variable types: 
	Scalar local and global variables
	Array local and global variables

Intrinsic functions:
	+, -, *, / and SQRT()
	IF(), THEN();ELSE()
	AND, OR, NOT, !=, <, >, <=, >=,== 
	WRITEFIFO(), WRITECVT(), 
	WRITEBOTH(),TIME(),
	MIN(), MAX(), AVERAGE(), OUT()

I/O General
A total of eight (8) Signal Conditioning Plug-on's (SCP's) can be installed in most 
combinations of input or output configurations on a single HP E1415A.

Analog Specifications
Analog input general: Up to eight (8) input channels are available on each SCP.
Measurement resolution: 16 bits
Common mode rejection: 100-120 dB

Measurement
Voltage measurement:

SCP Model Number	HP E1501A		HP E1502A		HP E1503A		HP E1508A		HP E1509A		HP E1510A		HP E1513A		HP E1514A/15A		HP E1516A/17A
			Direct Input SCP	10 Hz Low Pass		Programmable		Fixed			Fixed			Sample and Hold		Atten. Input / 4	Isolated x1, L.P.	Isolated x64, L.P.
			8 Channels		8 Channels		Filter Input SCP	Gain/Filter SCP		Gain/Filter SCP		4 Channels		4 Channels		4 Channels		4 Channels
									8 Channels		8 Channels		8 Channels
----------------------	------------------	------------------	------------------	------------------	------------------	------------------	------------------	------------------	------------------
Channels/Size		Eight/Single		Eight/Single		Eight/Single		Eight/Single		Eight/Single		Four/Single		Four/Single		Four/Single		Four/Single
----------------------	------------------	------------------	------------------	------------------	------------------	------------------	------------------	------------------	------------------
Signal Range		±62.5 mV FS to 		±62.5 mV FS to		±3.9 mV FS to		±3.9 mV FS to		±3.9 mV FS to		±3.9 mV FS to		±60 V FS		±10.2 V FS		±10.2 V FS
			±16 V FS		±16 V FS		±16 V FS		±1.0 V FS		±250 mV FS		±8.0 V FS
----------------------	------------------	------------------	------------------	------------------	------------------	------------------	------------------	------------------	------------------
Gain			x1			x1			x1, x8, x64		x16			x64			x0.5, x8, x64, x512	x0.062		x1			x64
----------------------	------------------	------------------	------------------	------------------	------------------	------------------	------------------	------------------	------------------
Filters			None			10 Hz, 2-pole		2, 10, 100 Hz		10 Hz, 2-pole		10 Hz, 2-pole		15, 100, 250, 500,	10 Hz, 2-pole		10 Hz low-pass/		10 Hz low-pass/
						low-pass		2-pole low-pass		low-pass		low-pass		1000 Hz 6-pole Bessel	low-pass		1 kHz low-pass		1 kHz low-pass

Temperature measurement: Measuring temperature with RTD's or thermistors 
requires the use of an E1505A Current Source SCP and an Input SCP for sensing the voltage 
drop. Thermocouples can be best measured using one of the input SCP's with gain.
Resistance measurement: The E1505A Current Source SCP provides two levels of 
drive current. The recommended method of measurement is four-wire sensing using another 
input SCP.

Analog Output General:

Up to eight (8) input channels are available on each SCP. A maximum of four (4) SCP's can be 
installed on an E1415A due to power limitations.

DC Voltage: The E1531A Voltage Output SCP has eight (8) non-isolated channels.
	Resolution: 16 bits
	Range: ±16 V full scale
	Accuracy: ±0.03% (>=100 k ohm lead)
	Compliance current: 5 ma
DC Current: The E1532A Current Output SCP has eight (8) non-isolated channels.
	Resolution: 16 bits
	Range: ±10 ma full scale (two channels can be connected in parallel to provide ±20 mA)
	Accuracy: ±0.1%
	Compliance voltage: 14 V

Digital Specifications
The E1533A Digital I/O SCP has two (2) channels. Each channel provides an 8-bit word 
which is programmable as input or output.

Digital Input

TTL compatible: 5 V max (non-isolated; use industry standard optisolators for isolation)

Digital Output

TTL compatible: 5 V max or open collector, 48 ma max (non-isolated; use industry standard
   optisolators for isolation)

Frequency Specifications
The E1534A Freq / Totalize / PWM SCP provides eight (8) channels per SCP which can be 
individually configured as a frequency or totalizer input, or as a pulse width modulated output.

Frequency/Totalize

Frequency range: 0.1 Hz to 100 kHz (>16,000 rpm using a 360 tooth degree wheel;
   programmable timeout available to detect zero RPM or loss of input)
Totalize: 24 bit max (16,777,216)
Input level: Non-isolated TTL compatible
Accuracy: ±0.1% at 1 ms gate time (greater accuracy with longer gate time)

Pulse Width Modulation

Frequency range: 1 Hz to 100 KHz
Output level: TTL, 5 V max
Pulse width: 10 µs minimum to one period minus 10 µsec maximum
Resolution: 240 ns

Other I/O Chracteristics
Watchdog timer: The E1535A Watchdog Timer SCP provides four channels of 
   one-shot circuit controlled by software which can be used to open an external
   relay on various levels of fault.
Holding current: 20 ma maximum

General Chracteristics
Module Timing Signals
Multiple HP E1415A modules can be synchronized by using the TTL trigger output from one 
HP E1415A to trigger the others.

VXI Specifications
VXI device type:      A16, Slave only, register-based
Size:                 C
Slots:                1
Connectors:           P1/2
Shared memory:        n/a
VXI busses:           TTL Trigger Bus
C-size compatibility: Yes

Product Ordering Information

HP E1415A	Algorithmic Closed Loop Controller
   Opt W01	3-yr. return to HP to 1-yr. on-site warranty
   Opt A3E	Crimp /insert connector
   Opt A3F	Interface to rack mount panel.

SCPs:
HP E1501A	Direct Input 
HP E1502A	Loss Pass Filter 
HP E1503A	Prog Gain / Low Pass
HP E1508A	X16 Gain / Low Pass
HP E1509A	X64 Gain / Low Pass 
HP E1510A	Sample/Hold Input  (4 channels)
HP E1513A	X4 Atten / Low Pass  (4 channels)
HP E1514A	Isolated / 10 Hz Low Pass  (4 channels)
HP E1515A	Isolated / 1 KHz Low Pass  (4 channels)
HP E1516A	Isolated / X64 / 10 Hz LP  (4 channels)
HP E1517A	Isolated / X64 / 1KHz LP  (4 channels)
HP E1531A	Voltage Output 
HP E1532A	Current Output 
HP E1533A	Digital Input/Output 
HP E1534A	Freq / Totalize / PWM 
HP E1535A	Watchdog Timer 


Note: all SCPs are 8 channels unless otherwise noted.

HP E1415A Technical Specifications Datasheet

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Page Updated: Thursday June 19 16:14:23 UTC 1997