Eaton Electrical D77A user manual Environmental Specifications, Device Default I/O Data, Bit Byte

Intelligent Technologies (IT.) D77A I/O Module Products

Environmental Specifications

Table 3: Environmental Ratings

Category	Description	Specification
Transportation	Temperature	-50°C to 80°C [-58°F to 176°F]
and Storage
	Humidity	5 – 95% non-condensing
Operating	Temperature	-25°C to 55°C [-13°F to 131°F]
		0°C to 55°C [32°F to 131°F] (analog I/O only)
	Humidity	5% – 95% non-condensing
	Altitude	Above 2000 meters [6600 feet] consult factory
	Shock	15G any direction for 11 milliseconds
	(IEC 68-2-27)	Relay Operation 8G any direction
	Vibration	5 – 150 Hz, 5G, 0.7 mm maximum peak-to-peak
	(IEC 68-2-6)	Relay Operation 10 – 55 Hz, 3G, 0.7 mm maximum peak-to-peak
	Pollution Degree	Devices are intended to be installed in a pollution degree 2
		environment.

Device Default I/O Data

The following tables display the device default data mapping for D77A I/O modules as the data would appear on a network.

Table 4: 8 Point Discrete Input Module (Produced)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Byte

I7

I6

I5

I4

I3

I2

I1

I0

0

Table 5: 8 Point Discrete Output Module (Consumed)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Byte

Q7

Q6

Q5

Q4

Q3

Q2

Q1

Q0

0

Table 6: 16 Point Discrete Input Module (Produced)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Byte

I7

I6

I5

I4

I3

I2

I1

I0

0

I15

I14

I13

I12

I11

I10

I9

I8

1

Table 7: 16 Point Discrete Output Module (Consumed)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Byte

Q7

Q6

Q5

Q4

Q3

Q2

Q1

Q0

0

Q15

Q14

Q13

Q12

Q11

Q10

Q9

Q8

1

Table 8: 16 Point Discrete Combination Module (Produced)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Byte

I7

I6

I5

I4

I3

I2

I1

I0

0

Table 9: 16 Point Discrete Combination Module (Consumed)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Byte

Q7

Q6

Q5

Q4

Q3

Q2

Q1

Q0

1

Table 10: 4 Channel Analog Input Module (Produced)

Bit 15

Bit 14

Bit 13

Bit 12

Bit 11

Bit 10

Bit 9

Bit 8

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

WORD

SB *

Analog Input Data/Channel 0

N/A**

0

SB *

Analog Input Data/Channel 1

N/A**

1

SB *

Analog Input Data/Channel 2

N/A**

2

SB *

Analog Input Data/Channel 3

N/A**

3

*Sign Bit

1= True (-)

0= False (+) **Not Used

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