Grayhill 70L-IDC5S, 70G-IDC5S, 70G-IDC24S User Manual

Contact Closure DC Input Modules

FEATURES

• Wire Dry Contact Sensors Directly
to Module, Eliminate External
Power Supply

• 2500 Vac Isolation

• Built-In Status LED

• UL, CSA, CE Mark, TÜV Certified
(TÜV not available on OpenLine

• Simplifies Field Wiring

CIRCUITRY: Negative True Logic

G5

+

1

VDC

2

TRANSFORMER

ISOLATION

+VCC

3

OUTPUT

GROUND

Ω

10K

4

5

CONTACT

DEBOUNCE

OUTPUT
DRIVER
CIRCUIT

®

)

I/O MODULE
PIN #

INPUT

DEVICE

INPUT

DEVICE

+

DC

SUPPLY

–

TERMINAL
BLOCK #

70L-IDL 70G-IDC

OPTICAL

ISOLATION

OPTICAL

ISOLATION

MODULE

®

HYSTERESIS

A

B

HYSTERESIS

0Ω

6

Vcc

7

CH. A STATUS

5

GND

8

CH. B STATUS

9

MODULE ID

OpenLine

TYPICAL WIRING FOR MODULE 0

+

1

1

FILTER

–

2

2

+

3

3

FILTER

–

4

4

BASE

OR

RACK

SPECIFICATIONS:

Specifications apply over operating
temperature range unless noted otherwise.

All Modules
Output Specifications

Output Current Range: 1-50 mA
Breakdown Voltage: 50 Vdc minimum
Off State Leakage Current: 1 µA maximum
On State Voltage Drop: 0.45 Vdc at 50 mA

maximum

I/O Modules

General Characteristics

Isolation Voltage Field to Logic:

2500 Vac (rms) minimum

SPECIFICATIONS: By Part Number

Type/Function

G5, Dry Contact 70L-IDC5S 70G-IDC5S 70G-IDC24S

Specifications Units

Maximum Dry Contact Voltage Rating Vdc 25 25 25
Minimum Dry Contact Current Rating mA 5 5 5
Maximum Turn-on Time mSec 10 3.0 3.0
Maximum Turn-off Time mSec 10 3.0 3.0
Contact Resistance (Output Low) Ω≤ 1.25K ≤ 1.25K ≤ 1.25K
Contact Resistance (Output High) Ω 25K 25K 25K
Nominal Logic Voltage (Vcc) Vdc 5 5 24
Logic Voltage Range: G5 Vdc 4.5-5.5 4.5-6 15-30
Max. Logic Supply Current mA 120
@ Nominal Vcc

1

WHEN BOTH CHANNELS ARE ACTIVATED

OpenLine

®

Vibration: .15mm, 10 to 50 Hz per IEC68-2-6
Mechanical Shock: 50 G's, 0.5 mS, sinsoidal

per IEC68-2-27

Storage Temperature Range:

-40°C to +100°C

Operating Temperature Range:

-40°C to +85°C

G5

Vibration: 20 G's peak or .06" double amplitude

10–2000 Hz per MIL–STD–202, Method 204,
Condition D

Mechanical Shock: 1500 G's 0.5 mS half-sine

Grayhill Part Number

1

41 41

per MIL–STD–202, Method 213, Condition F

Storage Temperature Range:

-40°C to +125°C

Operating Temperature Range:

0°C to +60°C

Available from your local Grayhill Distributor.

For prices and discounts, contact a local Sales
Office, an authorized local Distributor or Grayhill.

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Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: [phone] • Fax: [phone] • www.grayhill.com

Analog I/O Modules Engineering Information and Selection Chart

ANALOG I/O MODULES

Analog output modules are used in proportional
control of devices such as valves, motors, and
heaters. Analog input modules are used in data
gathering and proportional control applications.

All modules are potted for industrial
environments. They operate under high
vibration (IEC68-2-6; 0.15 mm/sec
150Hz) mechanical shock (IEC68-2-27; 11
mS, sinusoidal 30 gS) and high relative humidity
(IEC68-2-3; 5-95% non-condensing). They
feature a high level of noise immunity and
accuracy. All models provide isolation from
field to logic, field to power supply and module
to module.

2

at 10-

OpenLine® Analog

OpenLine® analog modules communicate
serially with the controller. Each module has a
separate transmit and receive line that operates
at 115,200 baud with no parity bits, 8 data bits,
and 1 stop bit (115.2K,N,8,1). The command
structure and responses for all modules are
detailed in Bulletin No. 743. Each module has
a microcontroller and non-volatile serial
EEPROM memory. The calibration data is
stored within the EEPROM, and may be
changed using the appropriate commands
and the 70L-PROG field calibration unit. The
software provided with the calibration unit
communicates with the modules through the
serial port of a PC. Calibration equipment is not
provided.

OpenLine® Analog Input Modules

Upon request, analog input modules return a

12-bit value that is right justified and packed in
a 16-bit word that represents the equivalent
analog value sensed.

OpenLine® thermocouple inputs linearize the
thermocouple reading and returns degrees to
the controller.

Openline® Analog Output

For analog output modules, the output of these
modules is zero scale on power up, then it is
the analog equivalent of the 12-bit value sent
to the module over the communication lines.

G5 Analog Output

The output (voltage or current level) of these
modules varies proportionally to the 12-bit
serial data string sent to them by a control
circuit. The data string is typically 213.2 µSec.
long as detailed in Figure 1. Once a data string
is received, the output is set and remains
constant until another data string is sent.
Therefore, the output level of the module could
be changed almost 4700 times a second.

For more information on programming Grayhill
analog output modules, request a copy of
Bulletin No. 581.

START 12 BIT DATA END

9.6µS 153.6µS 500µS

Figure 1

Start Pulse: High for 6.4 µS Min., then low

for 3.2 µS

Data Packet: Each bit is 12.8 µS long.

High for first 3.2 µS of the bit.
Middle 6.4 µS determines the value of the
data bit (High = 1, Low = 0).

Low for last 3.2 µS of the bit.
Stop Pulse: Low for 500 µS minimum
Times shown are ± 10%, except minimums.

SERIAL DATA FORMAT**

G5 Analog Input

G5 voltage or current input modules are actually
frequency converters. The input to these
modules is a signal from a sensor. The output
from these modules is a squarewave whose
frequency varies linearly from 14.4 to 72 KHz
and is proportional to the input signal. The
controller must be able to measure this
frequency and convert it back to a signal level.

G5 thermocouple modules pass through the
thermocouple reading and do not linearize the
signal. Linearization must take place within the
controller.

Agency Approvals

OpenLine® analog modules are EN50082-2
and EN50081-2 compliant and meet the
requirements of 89/336/EEC EMC directive.
They are also EN60950 (61010-1) compliant.
Meeting these requirements allows the modules
to bear the CE mark. Additionally, the modules
are CSA certified to CSA 22.2 No. 14-95M and
CSA 22.2 No. 213-M1987 Class I, Div. 2
Groups A, B, C and D and are UL recognized
to UL 508.

PART NUMBER EXPLANATION: Analog I/O Modules

Module Type

73G = Analog Module, G5 Package, Single Channel
73L = Analog Module, OpenLine® Package, Dual Channel

Function

OV = Analog Output, Voltage II = Analog Input, Current
OI = Analog Output, Current IT = Analog Input, Temperature
IV = Analog Input, Voltage

73G-IV50M

Suffix

Analog Modules: 5 = 0–5 Vdc 10 = 0 - 10 Vdc 50M = 0–50 mV

5B = -5–5 Vdc 10B = -10 - 10 Vdc 100M = 0–100 mV
1 = 0–1 Vdc 020 = 0 to 20 mA R100 = RTD
CJ = J type TC 420 = 4 to 20 mA R3100 = 3 Wire RTD
CK = K type TC 5000 = 0 to 5 A R4100 = 4 Wire RTD
CR = R type TC AC120 = 28 to 140 Vac
CT = T type TC AC240 = 28 to 280 Vac

I/O Modules

Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: [phone] • Fax: [phone] • www.grayhill.com

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