AC2217 - Electronic module IFM - Free user manual and instructions

Product type	AS-i analog input module
Brand	IFM
Model	AC2217
Function	Conversion of 0-10 V analog signals into digital data for AS-i network
Power supply	Via AS-i (max 100 mA) or external 24 V PELV supply (automatic selection)
Resolution	16 bits (1 mV)
Measurement range	0...10 V (0...10000 decimal)
Number of inputs	4 analog channels
Sensor connection	Screw terminals for 2, 3 or 4-wire sensors
Display	Diagnostic LEDs: PWR (green), AUX (green), FAULT (red), DIAG (yellow), Inputs (yellow)
Addressing	Address 1-31 (default 0) with addressing unit AC1144
Mounting	On 35 mm profile rail
Conversion time	20 ms (1 channel) to 240 ms (4 channels)
Compatibility	AS-i profile S-7.3.E, AS-i specification V2.1
Configuration	Bits P0 (50/60 Hz filter), P1/P2 (channel activation), P3 (device fault)
Accessories	Combicon connectors (E70230), addressing cable (E70213)
Max. number of slaves	31 per AS-i strand

Frequently Asked Questions - AC2217 IFM

What is the power supply for the AC2217 module?

The module can be powered via the AS-i network (max 100 mA) or via an external 24 V PELV supply. The selection is automatic as soon as an external voltage is applied.

How to address the AC2217 module?

The address (1 to 31) is set using the addressing unit AC1144. Addressing via the addressing connector (cable E70213) must be done with power off. The default address is 0.

What type of sensors can be connected?

You can connect 2, 3 or 4-wire analog 0-10 V sensors. The module has terminals I+, I-, 0V and V1..V4. For 2-wire sensors, connect I- and 0V with a shunt.

What do the LEDs on the module mean?

Yellow LEDs V1..V4: channel activated and signal in range (on), out of range (flashing), not activated (off). Green LED PWR: AS-i voltage. Green LED AUX: external power supply. Red LED FAULT: communication error (on) or device fault (flashing). Yellow LED DIAG: internal diagnosis.

How to signal a device fault?

A fault is signaled if at least one analog signal is out of range, if an activated channel has no sensor, or in case of wire break. The FAULT LED then flashes.

What is the measurement range of the AC2217?

The measurement range is 0 to 10 V, corresponding to 0...10000 decimal units. Above 11.5 V, the LED flashes and the value is 32767.

What is the transmission time of analog values?

The conversion time is from 20 ms for one channel (if others are deactivated) to 240 ms for four channels. The transmission time via AS-i is 35 ms for one channel and 140 ms for four (AS-i cycle 5 ms). This gives an ideal total of 55 ms (one channel) to 380 ms (four channels).

How to configure the filters and channel activation?

Configuration is done via bits P0 to P3. P0 selects the 50 Hz (1) or 60 Hz (0) filter. P1 and P2 activate the channels: 00 = channel1, 01 = channels 1-2, 10 = channels 1-3, 11 = channels 1-4. P3 enables (1) or disables (0) the device fault display.

Can the module be used with other brands of PLCs?

Yes, the AC2217 module is compatible with any AS-i master respecting the AS-i specification V2.1 and profile S-7.3.E. It integrates into a standard AS-i network.

What is the resolution of the module?

The resolution is 16 bits, i.e., 1 mV per increment. The measured value is transmitted digitally on the AS-i bus.

USER MANUAL AC2217 IFM

Function and features

The slave converts analogue input signals and transfers them to the AS-i master via the AS-Interface. The AS-i module operates as a slave with bidirectional data transfer in the AS-i network.

The data transfer to the host is asynchronous according to the AS-i profile S-7.3 and the AS-i specification V2.1.

• Current measurement 4...20 mA (AC2216)
  or voltage measurement 0...10 V (AC2217)
  AS-i profile S-7.3.E
• The sensors are connected via Combicon connectors (accessories, e.g. E70230)
  Maximum number of modules per AS-i system: 31
• R_i voltage measurement > 100 k ; R_i current measurement < 50

• Time for converting the measured values in the slave

• for one channel: 20 ms

• for two channels: 120 ms
• for three channels: 180 ms

• for four channels: 240 ms

• Sensor supply from AS-i (max. 100 mA) or external 24 V PELV voltage source (the external supply voltage is selected automatically as soon as an external 24 V voltage is applied)

• Resolution: 16 bits/1 A (AC2216) or 16 bits/1 mV (AC2217)
• Value range: 4000 ... 20000 dec. (AC2216) or 0 ... 10000 dec. (AC2217)

Addressing

Assign a free address between 1 and 31, the address set at the factory is 0.

Address the slave with the addressing unit AC1144.

The module can be addressed when mounted and wired with the addressing cable (E70213) via the implemented addressing interface.

Addressing via the addressing socket is only allowed when disconnected.

Installation

Fix the module onto a 35 mm rail.

Electrical connection

Connection of a 2-wire sensor

A 2-wire sensor is connected via the terminals I+ and C1...4 (AC2216) or V1...2 (AC2217). The terminals I- and OV must be connected to each other via a link.

Connection of a 3-wire sensor

A 3-wire sensor is connected via the terminals I+, I- und C1...4 (AC2216) bzw. V1...4 (AC2217). The terminals I- and OV must be connected to each other via a link.

Connection of a 4-wire sensor

A 4-wire sensor is connected via the terminals I+, I-, C1...4 (AC2216) or V1...4 (AC2217) and 0V.

Connection of an analogue sensor with intrinsic supply

A sensor with intrinsic supply is connected via the terminals C1...4 (AC2216) or V1...4 (AC2217) and 0V.

Parameter setting of the analogue modules

Parameter bit/ Designation	Description		Comments
P0 filter	1* 50 Hz filter in the A/D converter active		The 50 Hz filter applies to the whole of Europe
	0 60 Hz filter in the A/D converter active
P1, P2 channel activation	parameter bit		analogue channel
	P1 P2		1 2	3	4
	0	0	on	off	off	off
	0	1	on	on	off	off
	1	0	on	on	on	off
	1	1	on	on	on	on
P3 periphery fault	1* periphery fault indication active			* default
	0 periphery fault indication not active

Operation AC2216

Check the safe functioning of the unit. Display by LEDs:

• LEDs yellow I-1...4 on: analogue signal in the measuring range
• LEDs yellow I-1...4 flashing: analogue signal outside the measuring range, no sensor connected or wire break
• LEDs yellow 1-2...4 out: no sensor connected (at least one LED flashes because not all channels can be deactivated via the parameter bit P1/P2 (channel activation, channel 1 is always activated)
• LED green PWR on: AS-i voltage applied
• ED green AUX on: external 24 V voltage applied
• LED red FAULT on: AS-i communication error, e.g. slave address 0
• LED red FAULT flashes: periphery fault*

• LED yellow DIAG internal diagnosis
  DIAG ON: no error
  DIAG flashes: internal error (replace module)
  DIAG OUT: internal error (replace module)

• Periphery fault

A periphery fault is displayed:

• if at least one of the analogue signals is outside the value range
• if nothing is connected to at least one analogue channel although the respective channel is activated
• if a wire break occurred

Operation AC2217

Check the safe functioning of the unit. Display by LEDs:

• LEDs yellow I-1...4 on: respective channel is activated analogue signal in the measuring range or no sensor connected (it cannot be differentiated whether the 0V signal is applied or whether no sensor is connected) (channel 1 is always activated)
• LEDs yellow I-1...4 flashing: analogue signal outside the measuring range (outside range)
• LEDs yellow 1-2...4 out: respective channel is not activated
• LED green PWR on: AS-i voltage applied
• LED green AUX on: external 24 V voltage applied
• LED red FAULT on: AS-i communication error, e.g. slave address 0
• LED red FAULT flashes: periphery fault*
• LED yellow DIAG internal diagnosis
  DIAG ON no error
  DIAG flashes internal error (replace module)
  DIAG OUT internal error (replace module)
• Periphery fault
  A periphery fault is displayed:
• if at least one of the analogue signals is outside the value range

Measuring range of the analogue input modules

The measuring ranges, the states of the LEDs and their meaning are indicated in the following tables:

Analogue input module 4I, 4...20 mA - AC2216

Range 4...20mA	Units dec.	Units hex.	LED analogue	Meaning
< 1mA	32767	7FFF	flashes	wire break
1 mA ... 3.999 mA	1000 ... 3999	03E8 ... 0F9F	on	below nominal range
4 mA ... 20 mA	4000 ... 20000	0FA0 ... 4E20	on	nominal range
20.001 mA ... 23 mA	20001 ... 23000	4E21 ... 59D8	on	above nominal range
> 23 mA	32767	7FFF	flashes	outside range

Analogue input module 4I, 0...10 V - AC2217

Range 0...10 V	Units dec.	Units hex.	LED analogue	Meaning
< 0 V 0000	0000 on outside	range
0...10 V 0000	... 10000 0000	.. 2710 on nominal	range
10.001 V... 11.5 V	10001 ... 11500	2711 ... 2CEC on	above nominal	range
> 11.5 V	32767	7FFF	flashes	outside range

Transmission time of the analogue values

The transmission time of the analogue values depends on the conversion time of the analogue signals into digital signals in the AS-i module and on the transmission time via the AS-Interface.

The conversion time per analogue input signal is 60 ms. But if only channel 1 is used, i.e. all other channels are deactivated via the parameter bits P1 and P2, the conversion time for this channel is only 20 ms.

The transmission time of the 4 16-bit values via the AS-interface ideally is 7 AS-i cycles per value. For a cycle time of 5 ms per AS-i cycle this results in a transmission time of 4 * 7 * 5 ms = 140 ms via the AS-Interface.

If the channels 2 to 4 are deactivated, the transmission via the AS-Interface for one channel requires 7 AS-i cycles. For a cycle time of 5ms per AS-i cycle this results in a transmission time of 1 * 7 * 5 ms = 35 ms via the AS-Interface.

Thus the total transmission time for 4 analogue values ideally is 240~ms (conversion time) + 140 ms (transmission time) = 380 ms. If channels 2 to 4 are deactivated, the transmission time ideally is 20~ms + 35~ms = 55~ms .