The Add (+) and Subtract (-) commands use two address fields. Each uses the value in the Deceleration command field as the source address, and the value in the Command Value as the destination address. Only addresses in the range of 0 to 2303 are valid. For a map of these addresses, see RMC Register Map (PROFIBUS-DP Message Mode), but keep in mind that, once again, only addresses 0-2303 are accepted by these commands.
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