Siemens
01 2018
(4872) 700-366
skenergo@mail.ru

Article number

6ES7551-1AB00-0AB0

S7-1500, TM POSINPUT 2

General information

Product type designation

TM PosInput 2

Product function

  • I&M data

Yes; I&M 0

Engineering with

  • STEP 7 TIA Portal configurable/integrated as of version

V12 SP1 / V12 SP1

  • STEP 7 configurable/integrated as of version

V5.5 SP3 / -

  • PROFINET as of GSD version/GSD revision

V2.3 / -

Installation type/mounting

Rail mounting

Yes; S7-1500 mounting rail

Supply voltage

Load voltage L+

  • Rated value (DC)

24V

  • permissible range, lower limit (DC)

19.2V

  • permissible range, upper limit (DC)

28.8V

  • Reverse polarity protection

Yes

Input current

Current consumption, max.

75mA; without load

Encoder supply

Number of outputs

4; One 5V and 24V encoder supply per channel

5 V encoder supply

  • 5 V

Yes; 5.2 V 2 %

  • short-circuit protection

Yes

  • Output current, max.

300mA; Per channel

24 V encoder supply

  • 24 V

Yes; L+ (-0.8 V)

  • Short-circuit protection

Yes

  • Output current, max.

300mA; Per channel

Power

Power available from the backplane bus

1.3W

Power loss

Power loss, typ.

5.5W

Address area

Occupied address area

  • Inputs

16byte; Per channel

  • Outputs

12byte; per channel; 4 bytes for Motion Control

Digital inputs

Number of digital inputs

4; 2 per channel

Digital inputs, parameterizable

Yes

Input characteristic curve in accordance with IEC 61131, type 3

Yes

Digital input functions, parameterizable

  • Gate start/stop

Yes; only for pulse and incremental encoders

  • Capture

Yes

  • Synchronization

Yes; only for pulse and incremental encoders

  • Freely usable digital input

Yes

Input voltage

  • Type of input voltage

DC

  • Rated value (DC)

24V

  • for signal "0"

-30 to +5V

  • for signal "1"

+11 to +30V

  • permissible voltage at input, min.

-30V

  • permissible voltage at input, max.

30V

Input current

  • for signal "1", typ.

2.5mA

Input delay (for rated value of input voltage)

for standard inputs

  • parameterizable

Yes; none / 0.05 / 0.1 / 0.4 / 0.8 / 1.6 / 3.2 / 12.8 / 20 ms

  • at "0" to "1", min.

6s; for parameterization "none"

  • at "1" to "0", min.

6s; for parameterization "none"

for counter/technological functions

  • parameterizable

Yes

Cable length

  • shielded, max.

1000m

  • unshielded, max.

600m

Digital outputs

Type of digital output

Transistor

Number of digital outputs

4; 2 per channel

Digital outputs, parameterizable

Yes

Short-circuit protection

Yes; electronic/thermal

  • Response threshold, typ.

1A

Limitation of inductive shutdown voltage to

L+ (-33 V)

Controlling a digital input

Yes

Digital output functions, parameterizable

  • Switching tripped by comparison values

Yes

  • Freely usable digital output

Yes

Switching capacity of the outputs

  • with resistive load, max.

0.5A; Per digital output

  • on lamp load, max.

5W

Load resistance range

  • lower limit

48Ω

  • upper limit

12kΩ

Output voltage

  • Type of output voltage

DC

  • for signal "1", min.

23.2V; L+ (-0.8 V)

Output current

  • for signal "1" rated value

0.5A; Per digital output

  • for signal "1" permissible range, max.

0.6A; Per digital output

  • for signal "1" minimum load current

2mA

  • for signal "0" residual current, max.

0.5mA

Output delay with resistive load

  • "0" to "1", max.

50s

  • "1" to "0", max.

50s

Switching frequency

  • with resistive load, max.

10kHz

  • with inductive load, max.

0.5Hz; Acc. to IEC 60947-5-1, DC-13; observe derating curve

  • on lamp load, max.

10Hz

Total current of the outputs

  • Current per module, max.

2A

Cable length

  • shielded, max.

1000m

  • unshielded, max.

600m

Encoder signals, incremental encoder (symmetrical)

  • Input voltage

RS 422

  • Input frequency, max.

1MHz

  • Counting frequency, max.

4MHz; with quadruple evaluation

  • Cable length, shielded, max.

32m; at 1 MHz

  • Signal filter, parameterizable

Yes

  • Incremental encoder with A/B tracks, 90 phase offset

Yes

  • Incremental encoder with A/B tracks, 90 phase offset and zero track

Yes

  • Pulse encoder

Yes

  • Pulse encoder with direction

Yes

  • Pulse encoder with one impulse signal per count direction

Yes

Encoder signals, incremental encoder (asymmetrical)

  • Input voltage

5 V TTL (push-pull encoders only)

  • Input frequency, max.

1MHz

  • Counting frequency, max.

4MHz; with quadruple evaluation

  • Signal filter, parameterizable

Yes

  • Incremental encoder with A/B tracks, 90 phase offset

Yes

  • Incremental encoder with A/B tracks, 90 phase offset and zero track

Yes

  • Pulse encoder

Yes

  • Pulse encoder with direction

Yes

  • Pulse encoder with one impulse signal per count direction

Yes

Encoder signals, absolute encoder (SSI)

  • Input signal

to RS-422

  • Telegram length, parameterizable

10 ... 40 bit

  • Clock frequency, max.

2MHz; 125 kHz, 250 kHz, 500 kHz, 1 MHz, 1.5 MHz or 2 MHz

  • Binary code

Yes

  • Gray code

Yes

  • Cable length, shielded, max.

320m; Cable length, RS-422 SSI absolute encoders, Siemens type 6FX2001-5, 24 V supply: 125 kHz, 320 meters shielded, max.; 250 kHz, 160 meters shielded, max.; 500 kHz, 60 meters shielded, max.; 1 MHz, 20 meters shielded, max. 1.5 MHz, 10 meters shielded, max.; 2 MHz, 8 meters shielded, max.

  • Parity bit, parameterizable

Yes

  • Monoflop time

16, 32, 48, 64 s & automatic

  • Multiturn

Yes

  • Singleturn

Yes

Interface types

  • RS 422

Yes

  • TTL 5 V

Yes; push-pull encoders only

Isochronous mode

Isochronous operation (application synchronized up to terminal)

Yes

Filtering and processing time (TCI), min.

130s; only for pulse and incremental encoders

Bus cycle time (TDP), min.

250s

Interrupts/diagnostics/status information

Alarms

  • Diagnostic alarm

Yes

  • Hardware interrupt

Yes

Diagnostic messages

  • Monitoring the supply voltage

Yes

  • Wire-break

Yes

  • Short-circuit

Yes

  • A/B transition error at incremental encoder

Yes

  • Telegram error at SSI encoder

Yes

Diagnostics indication LED

  • RUN LED

Yes; Green LED

  • ERROR LED

Yes; Red LED

  • MAINT LED

Yes; yellow LED

  • Monitoring of the supply voltage (PWR-LED)

Yes; Green LED

  • Channel status display

Yes; Green LED

  • for channel diagnostics

Yes; Red LED

Integrated Functions

Number of counters

2

Counting frequency (counter) max.

4MHz; with quadruple evaluation

Counting functions

  • Can be used with TO High_Speed_Counter

Yes; only for pulse and incremental encoders

  • Continuous counting

Yes

  • Counter response parameterizable

Yes

  • Hardware gate via digital input

Yes

  • Software gate

Yes

  • Event-controlled stop

Yes

  • Synchronization via digital input

Yes

  • Counting range, parameterizable

Yes

Comparator

  • Number of comparators

2; Per channel

  • Direction dependency

Yes

  • Can be changed from user program

Yes

Position detection

  • Incremental acquisition

Yes

  • Absolute acquisition

Yes

  • Suitable for S7-1500 Motion Control

Yes

Measuring functions

  • Measuring time, parameterizable

Yes

  • Dynamic measurement period adjustment

Yes

  • Number of thresholds, parameterizable

2

Measuring range

  • Frequency measurement, min.

0.04Hz

  • Frequency measurement, max.

4MHz

  • Cycle duration measurement, min.

0.25s

  • Cycle duration measurement, max.

25s

Accuracy

  • Frequency measurement

100 ppm; depending on measuring interval and signal evaluation

  • Cycle duration measurement

100 ppm; depending on measuring interval and signal evaluation

  • Velocity measurement

100 ppm; depending on measuring interval and signal evaluation

Potential separation

Potential separation channels

  • between the channels

No

  • between the channels and backplane bus

Yes

  • Between the channels and load voltage L+

No

Isolation

Isolation tested with

707 V DC (type test)

Ambient conditions

Ambient temperature during operation

  • horizontal installation, min.

0C

  • horizontal installation, max.

60C; Please note derating for inductive loads

  • vertical installation, min.

0C

  • vertical installation, max.

40C; Please note derating for inductive loads

Decentralized operation

to SIMATIC S7-1500

Yes

to standard PROFINET controller

Yes

Dimensions

Width

35mm

Height

147mm

Depth

129mm

Weights

Weight, approx.

325g



















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