| Spec | Description |
|---|---|
| S1 | Batch I/O block |
| S2 | Loop 1 manual/auto station |
| S3 | Loop 2 manual/auto station |
| S4 | Output 1 device driver CO status |
| S5 | Output 2 device driver CO status |
| S6 | Auxiliary input 1 |
| S7 | Auxiliary input 2 |
| S8 | External alarm 1 |
| S9 | External alarm 2 |
| S10 | First ASCII string descriptor |
| S11 | Current step number |
| S12 | CBC station link address |
| S13 | Run/hold signal |
| S14 | Manual override lockout |
| S15 | Default mode of outputs |
| S16 | Executed stop (E-STOP) lockout |
| S17 |
|
| S18 | Last step number |
| S19 | Spare integer |
| S20 | Spare real |
| S21 | Spare real |
| Block | Type | Description |
|---|---|---|
| N | Bit | Hold/initialize |
| N+1 | Real | Initial step number |
| N+2 | Real | Recipe number |
| N+3 | Bit | Value of F1 key |
| N+4 | Bit | Value of F2 key |
| N+5 | Bit | Auxiliary switch 1 |
| N+6 | Bit | Auxiliary switch 2 |
| N+7 | Bit | Auxiliary switch 3 |
| N+8 | Bit | Auxiliary switch 4 |
| N+9 | Bit | Auxiliary switch 5 |
| N+10 | Bit | Auxiliary switch 6 |
| N+11 | Bit | Auxiliary switch 7 |
| N+12 | Bit | Auxiliary switch 8 |
| N+13 | Bit | ALARM ACK key indicator |
| N+14 | Bit | Alarm status |
| N+15 | Real | Reserved |
| N+16 | Real | Reserved |