FGD - Fragranite Machining Cell
We can have more than one Fragranite Machining Cell in the facility, so in the follow it will be mandatory to distinguish each one of them.
We will use the following codes to identify uniquely the cells:
- FMC001: Cell 1
- FMC002: Cell 2
- ….
- FMC00N: Cell N
Finally we will assign the name "Cell code" to this field.
Items count interface
The Fragranite Machining Cell subsystems are:
- Robot 1
- Robot 2
Each item that enter into the production process will be taken by the Robot 1 and then by the Robot 2.
So for each item the process is:
- Robot 1 starts the task
- Robot 1 terminates the task
- Robot 2 starts the task
- Robot 2 terminates the task
For each terminated process ESA will send data to Next via TCP/IP channel.
The data sent by ESA will consist in the following structure:
| Field | Description | Example |
|---|---|---|
| Command | A specific string of 4 characters | ITEM |
| Product | The code of the product | 114.0055.882 |
| Cell code | The code of the cell that is producing the item | FMC001 |
| Data of starting task in Robot 1 | Data in the format YYYYMMDD | 20230430 |
| Time of starting task in Robot 1 | Time in the format HH:MM:SS | 00:03:17 |
| Data of terminating task in Robot 1 | Data in the format YYYYMMDD | 20230430 |
| Time of terminating task in Robot 1 | Time in the format HH:MM:SS | 00:06:12 |
| Data of starting task in Robot 2 | Data in the format YYYYMMDD | 20230430 |
| Time of starting task in Robot 2 | Time in the format HH:MM:SS | 00:06:24 |
| Data of terminating task in Robot 2 | Data in the format YYYYMMDD | 20230430 |
| Time of terminating task in Robot 2 | Time in the format HH:MM:SS | 00:08:40 |
The string must be prepared considering the following rules:
- Each field is separated by the next one by the character ';'
- At the end of the string it will be placed the exadecimal code 0x04 (4 as a number)
Follows an example of a string that ESA can send at the end of the process:
ITEM;114.0055.882;FMC001;20230430;00:03:17;20230430;00:06:12;20230430;00:06:24;20230430;00:08:40\04
Machine status interface
The two robots can be in one of the following status:
- RUN: the robot is available or is producing
- STOP: the robot is not available so it cannot produce
We are interested in the following state transition:
- RUN → STOP: from RUN to STOP
- STOP → RUN: from STOP to RUN
ESA will send to Next via TCP/IP a specific message for each of the two state transition.
Considering a STOP event for one of the two robots, it is necessary to send the 2 messages in a specific order, in particular:
- RUN → STOP transition
- STOP → RUN transition
Next will not consider any different sequence, for example:
- RUN → STOP transition
- RUN → STOP transition
or
- STOP → RUN transition
- STOP → RUN transition
In the follow the data structure for the 2 transitions.
| RUN→STOP data structure | ||
|---|---|---|
| Field | Description | Example |
| Command | A specific string of 4 characters | STOP |
| Cell code | The code of the cell where the event is occurring | FMC002 |
| Robot | The robot interested by the event: ROBOT1 or ROBOT2 | ROBOT1 |
| Data of starting the event | Data in the format YYYYMMDD | 20230430 |
| Time of starting the event | Time in the format HH:MM:SS | 00:03:17 |
| Reason of the stop | A numeric code that identify the reason of the stop, from a specific list of the available stops | 20 |
The string must be prepared considering the following rules:
- Each field is separated by the next one by the character ';'
- At the end of the string it will be placed the exadecimal code 0x04 (4 as a number)
Follows an example of a string that ESA can send when a STOP begins:
STOP;FMC002;ROBOT2;20230430;00:03:17;20\04
| STOP→RUN data structure | ||
|---|---|---|
| Field | Description | Example |
| Command | A specific string of 3 characters | RUN |
| Cell code | The code of the cell where the event is occurring | FMC002 |
| Robot | The robot interested by the event: ROBOT1 or ROBOT2 | ROBOT1 |
| Data of starting the event | Data in the format YYYYMMDD | 20230430 |
| Time of starting the event | Time in the format HH:MM:SS | 00:03:17 |
| Reason of the stop | A numeric code that identify the reason of the stop, from a specific list of the available stops | 20 |
The string must be prepared considering the following rules:
- Each field is separated by the next one by the character ';'
- At the end of the string it will be placed the exadecimal code 0x04 (4 as a number)
Follows an example of a string that ESA can send when a STOP terminates:
RUN;FMC002;ROBOT2;20230430;00:08:17;20\04