Parker HannifinACR9030 and ACR9040 EPL Commands,Parameters and FlagsA new user command related to EPL is the ATTACH AXIS ELPD command,which will be described later in this appendix. The EPL network configurationrequires the user to set some of the parameters, and the rest of theconfiguration is automatically done by the ACR9030 and ACR9040. TheACR9030 and ACR9040 report the status of the EPL network and nodes inparameters and flags.NOTE: ACR-View utilizes a wizard-based configuration tool to set allrequired parameters.EPL Network and Node Control ParametersThe tables below list the network and drive parameters the user must set,and their default values. (The default values are applied on power up if user-supplied values have not been saved with the ESAVE command.)The parameter for the EPL network must be set for any network operation:EPL Network Parameter P Number Default ValueNumber of controlled nodes (CN) P37376 1 (valid range 0-15)Table 69 User-Set Network ParameterThe parameter for the EPL drives must be set for each EPL drive implied byP37376. The following shows the parameter for EPLD0, where “Node ID”refers to the external device setting, established by a switch on the device:EPLD0 Parameter P Number Default ValueNode ID P37632 1 (valid range 1-99)Table 70 User-Set Node ParameterThe entire list of network and node control and status parameters is givenlater in this appendix.Starting, Configuring and Resetting the NetworkNOTE: The following procedure is stated for reference only. If using ACR-View, the configuration wizard automatically accomplishes this procedure foryou.The user may command the ACR9030 or ACR9040 (MN) to start or reset thenetwork at any time using the EPLC ON and EPLC OFF commands,respectively, or by setting control bits in the EPL Network Control/Status flagparameter (P4616). The EPLC ON and EPLC OFF commands work byinternally setting the control bits discussed below.When the network is started via EPLC ON or bit 16640, the ACR9030 orACR9040 initially places all controlled nodes (CN) into the “pre-operational”state. During this state, the MN interrogates and configures the CNs asrequired. The CNs are then placed into the “operational” state, and theautomatic data transfer between the CNs and the MN takes place.170 ACR9000 Series Hardware Installation Guidewww.comoso.com
