For anyone working with PLCs and HMIs, picking between two control-panel displays usually comes down to more than screen size. You are balancing condition, price, and whether the panel matches the control platform already in the cabinet. Here, the decision is between the Allen Bradley PanelView Plus 7 Ser B at $799.99 and the Siemens 6FC5303-1AF10-8AA0 at $699.00. One is a used color touch panel from the PanelView Plus 7 family; the other is a new-open-box unit built for Siemens CNC environments. The right pick depends on which trade-off you can live with.
Quick Verdict
Between the two, the Siemens 6FC5303-1AF10-8AA0 is the easier recommendation if you want the lower listed price and a fresh unit. The Allen Bradley PanelView Plus 7 Ser B is the better fit if your control system is built around the PanelView Plus 7 line and you can accept a used surface.
At a Glance
| Product | Listed price | Condition | Price bar |
|---|---|---|---|
| Allen Bradley PanelView Plus 7 Ser B (2711P-T12W21D8S) | USD 799.99 | Used | |
| Siemens 6FC5303-1AF10-8AA0 CNC Operator Panel | USD 699.00 | New - Open box |
Where Each Product Wins
- Allen Bradley PanelView Plus 7 Ser B wins if you need a color touchscreen in the PanelView Plus 7 family and can tolerate visible scratches, scuffs, and bezel wear.
- Siemens 6FC5303-1AF10-8AA0 wins if you need a CNC operator panel for a Siemens controller platform and prefer a new-open-box unit.
Product Notes
#### Allen Bradley PanelView Plus 7 Ser B (2711P-T12W21D8S)

For operators who want a touch panel with a color display, the Allen Bradley PanelView Plus 7 Ser B delivers that format directly. This used unit carries a 2018 manufacture date, a United States origin, and the model number 2711P-T12W21D8S. The practical advantage is that it comes from the PanelView Plus 7 family, which makes it a natural fit for systems already using that HMI lineup. The limitation is the condition: the screen has visible scratches and scuffs on the surface, and the bezel shows cosmetic wear. If you are replacing a worn panel or building a control station where appearance is less critical than function, this is the unit to weigh. Just go in expecting that wear.
#### Siemens 6FC5303-1AF10-8AA0 CNC Operator Panel

The Siemens 6FC5303-1AF10-8AA0, meanwhile, is a new-open-box CNC operator panel aimed at machine automation, manufacturing systems, and industrial control applications. It is identified with a Siemens controller platform and is described as suitable for replacement, spare inventory, machine repair, or system integration. The big plus here is the condition: the unit comes from a facility project that never went into operation, so it is effectively new, even though it does not include the original factory box. For anyone working on a Siemens-based CNC or automation setup, this panel offers a clean starting point. The trade-off is packaging rather than performance: you get a new-open-box unit without the original box, so you should plan to handle mounting and setup with that in mind.
Final Choice by Use Case
If your machine runs on a Siemens control platform and you need a spare or replacement panel, the Siemens 6FC5303 is the straightforward pick. If you need a PanelView Plus unit for an Allen Bradley HMI setup, the used Allen Bradley is the right route, as long as you accept the cosmetic wear. Let the control platform and condition tolerance guide you, and the price gap between $699.00 and $799.99 becomes a simple matter of which feature set you actually need.