Is remote input required on the cascade primary controller when performing cascade control with two controllers?

On the cascade primary controller, if there is no secondary SP information, when you switch from AUTO to cascade on the cascade secondary controller, the secondary settings change abruptly, so control is interrupted. To avoid this, in advance, send the SP value on the secondary controller to the primary controller, and have it do tracking.To do that, remote input is needed on the cascade primary controller as well.