6.1 PROFINET communication
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Details of the contents and fields of Message 750:
The message 750 is applicable to torque limit related control, and the message content is
as follows:
Message 750
P362 = 750
Receiving word (3 PZD) Sending word (1 PZD)
PZD1 M_ADD1 M_ACT
PZD2 M_LIMIT_POS
PZD3 M_LIMIT_NEG
M_ADD1: Additional torque (function to be improved), N2.
M_LIMIT_POS: Positive torque limit, N2.
Servo parameter P312 is used as the benchmark variable. The positive torque limit
instruction corresponding to N2 type normalized data sent by PLC is required to be greater
than 0, which is used as the internal positive torque limit value of the servo driver. For details,
see Section 6.1.4.
M_LIMIT_NEG: negative torque limit, N2.
Servo parameter P312 is used as the benchmark variable. The positive torque limit
instruction corresponding to N2 type normalized data sent by PLC is required to be less than 0,
which is used as the internal negative torque limit value of the servo driver. For details, see
Section 6.1.4.
M_ACT: actual torque feedback value, N2.
The servo parameter P312 is used as the reference variable, and the N2 type normalized
data corresponding to the current actual torque of the servo driver is used as the actual torque
return value of PLC. For details, see Section 6.1.4.