# PLCLogo Binding
This binding provides native support of Siemens LOGO! PLC devices.
Communication with LOGO! is done via Moka7 library.
Currently only two devices are supported: 0BA7 (LOGO! 7) and 0BA8 (LOGO! 8).
Additionally multiple devices are supported.
Different families of LOGO! devices should work also, but was not tested now due to lack of hardware.
Binding works nicely at least 100ms polling rate, if network connection is stable.
# Pitfalls
Changing of block parameter while running the binding may kill your LOGO!, so that program flashing via LOGO! SoftComort will be required. Furthermore programs within LOGO! SoftComfort and LOGO! itself will differ, so that online simulation will not work anymore without program synchronisation.
Flashing the LOGO! while running the binding may crash the network interface of your LOGO!. Before flashing the LOGO! with LOGO! SoftComfort stop openHAB service. If network interface is crashed, no reader could be created for this device. See troubleshooting section below how to recover.
# Discovery
Siemens LOGO! devices can be manually discovered by sending a request to every IP on the network. This functionality should be used with caution, because it produces heavy load to the operating hardware. For this reason, the binding does not do an automatic background discovery, but discovery can be triggered manually.
# Bridge configuration
Every Siemens LOGO! PLC is configured as bridge:
Bridge plclogo:device:<DeviceId> [ address="<ip>", family="<0BA7/0BA8>", localTSAP="0x<number>", remoteTSAP="0x<number>", refresh=<number> ]
| Parameter | Type | Required | Default | Description |
|---|---|---|---|---|
| address | String | Yes | IP address of the LOGO! PLC. | |
| family | String | Yes | LOGO! family to communicate with. Can be 0BA7 or 0BA8 now. | |
| localTSAP | String | Yes | TSAP (as hex) is used by the local instance. Check configuration | |
in LOGO!Soft Comfort. Common used value is 0x3000. | ||||
| remoteTSAP | String | Yes | TSAP (as hex) of the remote LOGO! PLC, as configured by | |
LOGO!Soft Comfort. Common used value is 0x2000. | ||||
| refresh | Integer | No | 100ms | Polling interval, in milliseconds. Is used for query the LOGO!. |
Be sure not to use the same values for localTSAP and remoteTSAP, if configure more than one LOGO!
# Thing configuration
Binding supports four types of things: digital, analog, memory and datetime.
# Digital Things
The configuration pattern for digital things is:
Thing digital <ThingId> "Label" @ "Location" [ kind="<kind>", force=<true/false> ]
| Parameter | Type | Required | Default | Description |
|---|---|---|---|---|
| kind | String | Yes | Blocks kind | |
| force | Boolean | No | false | Send current value to openHAB, independent if changed or not |
Follow block kinds are allowed for digital things:
| Type | 0BA7 | 0BA8 |
|---|---|---|
| Input | I | I |
| Output | Q | Q |
| Marker | M | M |
| Network input | NI | |
| Network output | NQ |
# Analog Things
The configuration pattern for analog things is:
Thing analog <ThingId> "Label" @ "Location" [ kind="<kind>", threshold=<number>, force=<true/false> ]
| Parameter | Type | Required | Default | Description |
|---|---|---|---|---|
| kind | String | Yes | Blocks kind | |
| threshold | Integer | No | 0 | Send current value to openHAB, if changed more than threshold |
| force | Boolean | No | false | Send current value to openHAB, independent if changed or not |
Follow block kinds are allowed for analog things:
| Type | 0BA7 | 0BA8 |
|---|---|---|
| Input | AI | AI |
| Output | AQ | AQ |
| Marker | AM | AM |
| Network input | NAI | |
| Network output | NAQ |
# Memory Things
The configuration pattern for analog things is:
Thing memory <ThingId> "Label" @ "Location" [ block="<name>", threshold=<number>, force=<true/false> ]
Follow block names are allowed for memory things:
| Type | 0BA7 | 0BA8 |
|---|---|---|
| Bit | VB[0-850].[0-7] | VB[0-850].[0-7] |
| Byte | VB[0-850] | VB[0-850] |
| Word | VW[0-849] | VW[0-849] |
| DWord | VD[0-847] | VD[0-847] |
Parameter threshold will be taken into account for Byte, Word and DWord, i.e Number items, only.
# DateTime Things
The configuration pattern for datetime things is:
Thing datetime <ThingId> "Label" @ "Location" [ block="<name>", type=<type>, force=<true/false> ]
Follow block names are allowed for datetime things:
| Type | 0BA7 | 0BA8 |
|---|---|---|
| Word | VW[0-849] | VW[0-849] |
If parameter type is "date", then the binding will try to interpret incoming data as calendar date.
The time this case will be taken from openHAB host.
If type is set to "time", then incoming data will be tried to interpret as time of day.
The date this case will be taken from openHAB host.
# Pulse Things
The configuration pattern for pulse things is:
Thing pulse <ThingId> "Label" @ "Location" [ block="<name>", observe="<name>", pulse=<number> ]
Follow block names are allowed for pulse things:
| Type | 0BA7 | 0BA8 |
|---|---|---|
| Bit | VB[0-850].[0-7] | VB[0-850].[0-7] |
Follow observed block names are allowed for pulse things:
| Type | 0BA7 | 0BA8 |
|---|---|---|
| Bit | VB[0-850].[0-7] | VB[0-850].[0-7] |
| Bit | I[1-24] | I[1-24] |
| Bit | Q[1-16] | Q[1-20] |
| Bit | M[1-27] | M[1-64] |
| Bit | NI[1-64] | |
| Bit | NQ[1-64] |
If observe is not set or set equal block, simply pulse with length pulse milliseconds is send to block.
If observe is set and differ from block, binding will wait for value change on observe and send then a pulse with length pulse milliseconds to block.
Please note, update rate for change detection depends on bridge refresh value.
For both use cases: if block was 0 then 1 is send and vice versa.
# Channels
# Bridge
Each device have currently three channels diagnostic, rtc and weekday:
channel="plclogo:device:<DeviceId>:diagnostic"
channel="plclogo:device:<DeviceId>:rtc"
channel="plclogo:device:<DeviceId>:weekday"
Channels diagnostic and weekday supports String items. Channel diagnostic contains the last diagnostic message reported by LOGO!.
Channel weekday contains current day of the week.
The value is provided by LOGO!.
Channel rtc supports DateTime items only. Since Siemens 0BA7 (LOGO! 7) devices will not transfer any useful data for this channel, local time of openHAB host will be used.
Rather for Siemens 0BA8 (LOGO! 8) devices, the data will be read from PLC.
Since the smallest resolution provided by LOGO! is one second, rtc channel will be tried to update with the same rate.
# Digital
Format pattern for digital channels is
channel="plclogo:digital:<DeviceId>:<ThingId>:<Channel>"
Dependent on configured LOGO! PLC and thing kind, follow channels are available:
| Kind | 0BA7 | 0BA8 | Item |
|---|---|---|---|
I | I[1-24] | I[1-24] | Contact |
Q | Q[1-16] | Q[1-20] | Switch |
M | M[1-27] | M[1-64] | Switch |
NI | NI[1-64] | Contact | |
NQ | NQ[1-64] | Switch |
# Analog
Format pattern for analog channels is
channel="plclogo:analog:<DeviceId>:<ThingId>:<Channel>"
Dependent on configured LOGO! PLC and thing kind, follow channels are available:
| Kind | 0BA7 | 0BA8 | Item |
|---|---|---|---|
AI | AI[1-8] | AI[1-8] | Number |
AQ | AQ[1-2] | AQ[1-8] | Number |
AM | AM[1-16] | AM[1-64] | Number |
NAI | NAI[1-32] | Number | |
NAQ | NAQ[1-16] | Number |
# Memory
Format pattern for memory channels for bit values is
channel="plclogo:memory:<DeviceId>:<ThingId>:<state/value>"
Dependent on configured LOGO! PLC and thing kind, follow channels are available:
| Kind | 0BA7 | 0BA8 | Item |
|---|---|---|---|
VB[0-850].[0-7] | state | state | Switch |
VB[0-850] | value | value | Number |
VW[0-849] | value | value | Number |
VD[0-847] | value | value | Number |
# DateTime
Format pattern depends for date/time channels is
channel="plclogo:datetime:<DeviceId>:<ThingId>:<date/time>"
Dependent on configured LOGO! PLC and thing kind, follow channels are available:
| Kind | 0BA7 | 0BA8 | Item |
|---|---|---|---|
VW[0-849] | date | date | DateTime |
VW[0-849] | time | time | DateTime |
VW[0-849] | value | value | Number |
Channel date is available, if thing is configured as "date".
Is thing configured as "time", then channel time is provided.
Raw block data is provided via value channel, independed from thing configuration:
channel="plclogo:datetime:<DeviceId>:<ThingId>:value"
# Pulse
Format pattern depends for pulse channels is
channel="plclogo:pulse:<DeviceId>:<ThingId>:state"
Additionally the state of observed block data is provided via observed channel
channel="plclogo:pulse:<DeviceId>:<ThingId>:observed"
Dependent on configured LOGO! PLC and thing kind, follow channels are available:
| Kind | 0BA7 | 0BA8 | Item |
|---|---|---|---|
VB[0-850].[0-7] | state | state | Switch |
VB[0-850].[0-7] | observed | observed | Switch |
I[1-24] | observed | observed | Contact |
Q[1-16/20] | observed | observed | Switch |
M[1-27/64] | observed | observed | Switch |
NI[1-64] | observed | Contact | |
NQ[1-64] | observed | Switch |
# Examples
Configuration of one Siemens LOGO!
logo.things:
Bridge plclogo:device:Logo [ address="192.168.0.1", family="0BA8", localTSAP="0x3000", remoteTSAP="0x2000", refresh=100 ]
{
Thing digital Inputs [ kind="I" ]
Thing digital Outputs [ kind="Q" ]
Thing memory VW100 [ block="VW100", threshold=1, force=true ]
Thing datetime VW102 [ block="VW102", type="time" ]
Thing datetime VW150 [ block="VW150", type="date" ]
Thing pulse VB0_1 [ block="VB0.1", observe="Q1", pulse=500 ]
}
logo.items:
Contact LogoI1 { channel="plclogo:digital:Logo:Inputs:I1" }
Contact LogoI2 { channel="plclogo:digital:Logo:Inputs:I2" }
Switch LogoQ1 { channel="plclogo:digital:Logo:Outputs:Q1" }
Switch LogoQ2 { channel="plclogo:digital:Logo:Outputs:Q2" }
Number Position { channel="plclogo:memory:Logo:VW100:value" }
DateTime LogoTime { channel="plclogo:datetime:Logo:VW102:time" }
DateTime LogoDate { channel="plclogo:datetime:Logo:VW150:date" }
Switch LogoVB1_S { channel="plclogo:pulse:Logo:VB0_1:state"}
Switch LogoVB1_O { channel="plclogo:pulse:Logo:VB0_1:observed"}
String Diagnostic { channel="plclogo:device:Logo:diagnostic"}
DateTime RTC { channel="plclogo:device:Logo:rtc"}
String DayOfWeek { channel="plclogo:device:Logo:weekday"}
Configuration of two Siemens LOGO!
logo.things:
Bridge plclogo:device:Logo1 [ address="192.168.0.1", family="0BA8", localTSAP="0x3000", remoteTSAP="0x2000", refresh=100 ]
{
Thing digital Inputs [ kind="I" ]
Thing digital Outputs [ kind="Q" ]
Thing memory VW100 [ block="VW100", threshold=1 ]
Thing pulse VB0_0 [ block="VB0.0", observe="NI1", pulse=250 ]
}
Bridge plclogo:device:Logo2 [ address="192.168.0.2", family="0BA8", localTSAP="0x3100", remoteTSAP="0x2000", refresh=100 ]
{
Thing digital Inputs [ kind="I" ]
Thing digital Outputs [ kind="Q" ]
Thing memory VD102 [ block="VD102", threshold=1 ]
Thing pulse VB0_1 [ block="VB0.1", observe="VB0.1", pulse=500 ]
}
logo.items:
Contact Logo1_I1 { channel="plclogo:digital:Logo1:Inputs:I1" }
Contact Logo1_I2 { channel="plclogo:digital:Logo1:Inputs:I2" }
Switch Logo1_Q1 { channel="plclogo:digital:Logo1:Outputs:Q1" }
Switch Logo1_Q2 { channel="plclogo:digital:Logo1:Outputs:Q2" }
Number Logo1_VW100 { channel="plclogo:memory:Logo1:VW100:value" }
Switch Logo1_VB0_S { channel="plclogo:pulse:Logo1:VB0_0:state"}
Contact Logo1_VB0_O { channel="plclogo:pulse:Logo1:VB0_0:observed"}
DateTime Logo1_RTC { channel="plclogo:device:Logo1:rtc"}
Contact Logo2_I1 { channel="plclogo:digital:Logo2:Inputs:I1" }
Contact Logo2_I2 { channel="plclogo:digital:Logo2:Inputs:I2" }
Switch Logo2_Q1 { channel="plclogo:digital:Logo2:Outputs:Q1" }
Switch Logo2_Q2 { channel="plclogo:digital:Logo2:Outputs:Q2" }
Number Logo2_VD102 { channel="plclogo:memory:Logo2:VD102:value" }
Switch Logo2_VB1_S { channel="plclogo:pulse:Logo2:VB0_1:state"}
Switch Logo2_VB1_O { channel="plclogo:pulse:Logo2:VB0_1:observed"}
DateTime Logo2_RTC { channel="plclogo:device:Logo2:rtc"}
# Troubleshooting
# LOGO! bridge will not go online
Be sure to have only one bridge for each LOGO! device.
# Log shows reader was created but no communication with LOGO! possible
Check TSAP values: localTSAP and remoteTSAP should not be the same. You have to choose different addresses.
openHAB is starting without errors but no reader was created for the LOGO!
If all configuration parameters were checked and fine, it maybe possible that the network interface of the LOGO! is crashed. To recover stop openHAB, cold boot your LOGO! (power off/on) and reflash the program with LOGO! SoftComfort. Then restart openHAB and check logging for a created reader.
# RTC value differs from the value shown in LOGO! (0BA7)
This is no bug! Since there is no way to read the RTC from a 0BA7, the binding simply returns the local time of openHAB host.